The Bronze Heart of Crete

One-Shot · 6 Players · Average Level 8 · Greek Mythology · ~3.5 hrs / 3 Encounters

Style: Infiltration & Shutdown-the-Colossus | Win Condition: Reach the Ichor Heart inside Talos and complete the shutdown sequence before the colossus reaches the harbor | Setting: The port village of Amnisos, Crete, and the animated interior of the Bronze Talos.

The party's trireme makes landfall at Amnisos just as the bronze colossus Talos, guardian of Crete, lurches to life and begins rampaging toward the coast. A disguised smith warns them its ichor-heart has been corrupted, and only someone who can reach the valve inside its chest can shut it down without destroying it forever.

"You smell the forge before you see the man — soot to the elbows, a burn-scarred grin. 'Kadmos,' he says, extending a hand like tempered iron. 'The giant on the ridge is not attacking Crete. Something is hurting it, and it doesn't know how to scream except with its fists. I need someone small enough to climb inside its chest and quiet its heart before it reaches the harbor.'"

Maguffin — The Aegis Pin: Kadmos presses a cold bronze nail into your palm, etched with spiraling script. Attached is a scrap of hide reading: "Seek the ichor-valve at heart or heel. Turn the pin thrice. The bronze giant will sleep, not die." (Full card, Page 4.)

Major Beats

Trireme lands at Amnisos; party meets Kadmos (Hephaestus in disguise) at the dockside tavern, the Drowned Anchor.
Kadmos explains Talos's ichor-heart has been corrupted and hands over the Aegis Pin.
Encounter 1: Amnisos village is under attack by a rampaging Chalkotauros (bronze bull sentinel); scholar Ikara is trapped under rubble.
Villagers point the party toward Talos's fallen heel-hatch, ground into the shoreline by its own weight.
Encounter 2: Party climbs the internal clockwork shaft from heel to torso, past Bronze Sentries and steam hazards; may free the bound construct Kyros.
Party reaches the torso access hatch and descends into the Ichor Heart chamber.
Encounter 3 (Boss): Party defends the Ichor Valve from Legionnaire constructs and the Talos Overseer for 3 shutdown successes within 8 rounds.
Success: Talos kneels and powers down on the shoreline, intact but dormant — Crete is safe, and legend gains a new chapter.

Creature / Enemy List

Creature	CR	Encounter	Notes
Chalkotauros (Bronze Bull)	4	1	Avoidable via DC 15 Arcana/Investigation shutdown
Bronze Sentry	2	2	x2 (x3 at Hard scaling); avoidable via valve puzzle
Bronze Legionnaire	2	3	x2 standard soldiers
Keraunos Legionnaire (Lightning)	3	3	Discharge reaction at half HP
Pyrikaus Legionnaire (Fire)	3	3	Cinder Breath recharge 5–6
Talos Overseer	5	3	Mini-boss; buffs Legionnaires, Overcharge Core

Difficulty Scaling (APL 4 / 6 / 8[baseline] / 10)

Encounter	APL 4	APL 6	APL 8 (Baseline)	APL 10
1 — Bull in the Streets	Bull HP 55, no Trampling Charge	Bull HP 70	As written (HP 85)	Add 2nd bull at half HP
2 — Clockwork Ascent	1 Sentry only	2 Sentries	As written (2 Sentries)	3 Sentries + 1 elite Sentry
3 — Ichor Heart (Boss)	Remove Overcharge Core; drop 1 Legionnaire	Drop Pyrikaus Legionnaire	As written (Hard)	+1 Bronze Legionnaire; Overseer HP +30

Encounters

Encounter 1 — The Bull in the Streets

Style: Skirmish w/ Non-Lethal Option | Win Condition: Stop the Chalkotauros and free Ikara | Difficulty: Moderate | Terrain: Amnisos village street, 80×60 ft; overturned carts/nets = difficult terrain & half cover; collapsed well pins Ikara.

Creatures: 1× Chalkotauros (Bronze Bull), CR 4 (see Page 3).
Non-combat option: Adjacent creature spends an action on a DC 15 Arcana or Investigation check to locate the neck-rune and power the bull down instantly (provokes an opportunity attack).
Combat option: Standard fight — watch for Trampling Charge (Recharge 5–6).
Rescue: DC 13 Athletics to clear rubble off Ikara, or DC 12 Medicine to stabilize her once freed. Each failed rescue attempt while the bull is active draws its aggro.

Success — Bull disabled/destroyed and Ikara rescued: she joins as an ally (advantage on Investigation/Arcana in Encounters 2–3; skips one hazard in Encounter 2).

Partial — Bull defeated but Ikara not freed within 3 rounds: she survives but only gives info, does not join.

Encounter 2 — The Clockwork Ascent

Style: Environmental Hazard + Avoidable Guardian Skirmish | Win Condition: Reach the torso access hatch | Difficulty: Moderate | Terrain: Vertical gear shaft, 40 ft spiral gantry; steam vents erupt every 3 rounds (init count 20) — DC 13 Dex save or 2d6 fire; rotating gear-plate floor sections are difficult terrain.

Creatures: 2× Bronze Sentry, CR 2 each (see Page 3).
Non-combat option: 3 valve stations along the gantry; DC 14 Investigation/Arcana at each (1 action, splittable among party). Succeeding at 2 of 3 sets Sentries to dormant standby, bypassing combat entirely.
Combat option: Shoving a Sentry into an active gear-plate (contested Athletics/Acrobatics or a successful shove) destroys it instantly.
Recruit: A gear-locked alcove holds Kyros, a small bronze owl construct. Freeing it costs a DC 12 Sleight of Hand or tinker's tools check.

Aftermath — Kyros freed: joins the party; in Encounter 3 it can auto-succeed one shutdown check (once) or grant advantage on the reaction vs. Overcharge Core. Sentries bypassed via valves: party gets a surprise round entering Encounter 3.

Encounter 3 — The Ichor Heart (Boss)

Style: Defend-the-Ritual | Win Condition: 3 cumulative shutdown-check successes at the Ichor Valve using the Aegis Pin within 8 rounds | Difficulty: Hard | Terrain: Circular vault, 60 ft diameter; rotating gear-plates (init 20, DC 12 Dex save or slide 10 ft); ruptured wall conduits deal 1d8 fire or lightning (DM's choice by color) on touch; central dais holds the Ichor Valve.

Creatures: 1× Talos Overseer (CR 5), 2× Bronze Legionnaire (CR 2), 1× Keraunos Legionnaire (CR 3), 1× Pyrikaus Legionnaire (CR 3). Full cards Page 3.
Shutdown check: A PC adjacent to the valve spends an action for a DC 13 Arcana or tinker's tools check; max 1 success per round; 3 successes required to complete.
Overcharge Core (Overseer, Recharge 6): Undoes one banked shutdown success unless a PC reacts with a DC 15 Arcana check to stabilize the valve.
Gearlock Sync (Overseer trait): At the start of its turn, grants one Legionnaire within 30 ft resistance to all damage until the Overseer's next turn — focus the Overseer to strip this buff.
Ally assist: Ikara grants advantage on shutdown checks if present; Kyros can auto-succeed one check (once).

Success — 3 successes land within 8 rounds: Talos kneels and powers down on the shoreline, dormant but intact. All constructs go inert immediately.

Failure — 8 rounds elapse: Talos completes its lurch into the harbor, destroying the party's trireme and part of the docks. Party must flee the collapsing chamber — DC 13 Dex save each round or take 2d6 bludgeoning from falling debris. No deaths required, but stakes escalate for any sequel.

Creature Stat Blocks

Chalkotauros (Bronze Bull)

	STR	DEX	CON	INT	WIS	CHA
sc md sv	20 +5 +5	12 +1 +1	18 +4 +4	3 −4 −4	10 +0 +0	1 −5 −5

Large Construct, Unaligned · CR 4

AC 17 | HP 85 (10d10+30) | Speed 40 ft

Resist bludgeoning/piercing/slashing (nonmagical); Immune poison, psychic, exhaustion, charmed, frightened, paralyzed, petrified, poisoned; Darkvision 60 ft

Siege Monster. Deals double damage to objects/structures.

Multiattack. Two Gore attacks.

Gore. +8 to hit, reach 5 ft, 18 (2d10+7) piercing; Medium or smaller target: DC 16 Str save or knocked prone.

Trampling Charge (Recharge 5–6). Moves up to speed; adjacent creatures in its path take a bonus Gore attack.

Shutdown: Adjacent creature, action, DC 15 Arcana/Investigation disables it (provokes OA).

Bronze Sentry

	STR	DEX	CON	INT	WIS	CHA
sc md sv	16 +3 +3	12 +1 +1	16 +3 +3	3 −4 −4	8 −1 −1	1 −5 −5

Medium Construct, Unaligned · CR 2

AC 16 | HP 45 (6d8+18) | Speed 30 ft

Resist bludgeoning/piercing/slashing (nonmagical); Immune poison, psychic, exhaustion + conditions; Darkvision 60 ft

Multiattack. Two Bronze Fist attacks.

Bronze Fist. +5 to hit, reach 5 ft, 8 (1d10+3) bludgeoning.

Standby: Set dormant via valve puzzle (DC 14 Investigation/Arcana, 2 of 3 valves).

Bronze Legionnaire

	STR	DEX	CON	INT	WIS	CHA
sc md sv	16 +3 +3	13 +1 +1	17 +3 +3	5 −3 −3	10 +0 +0	1 −5 −5

Medium Construct, Unaligned · CR 2

AC 17 | HP 60 (8d8+24) | Speed 30 ft

Resist bludgeoning/piercing/slashing (nonmagical); Immune poison, psychic, exhaustion + conditions

Multiattack. Two Xiphos Strikes.

Xiphos Strike. +5 to hit, reach 5 ft, 9 (1d10+3) slashing.

Shield Bash (Bonus, 1/turn if it hit this turn). Target: DC 13 Str save or pushed 10 ft and knocked prone.

Keraunos Legionnaire (Lightning)

Medium Construct, Unaligned · CR 3

AC 17 | HP 70 (10d8+25) | Speed 30 ft

	STR	DEX	CON	INT	WIS	CHA
sc md sv	16 +3 +3	13 +1 +1	17 +3 +3	5 −3 −3	10 +0 +0	1 −5 −5

As Bronze Legionnaire; Resist lightning

Multiattack. Two Charged Blade attacks.

Charged Blade. +6 to hit, reach 5 ft, 10 (1d10+4) slashing plus 7 (2d6) lightning.

Discharge (Reaction, when reduced below half HP). 10-ft radius burst; DC 14 Dex save, 14 (4d6) lightning (half on success).

Pyrikaus Legionnaire (Fire)

Medium Construct, Unaligned · CR 3

AC 16 | HP 65 (9d8+27) | Speed 30 ft

	STR	DEX	CON	INT	WIS	CHA
sc md sv	16 +3 +3	13 +1 +1	17 +3 +3	5 −3 −3	10 +0 +0	1 −5 −5

As Bronze Legionnaire; Resist fire

Multiattack. Two Molten Fist attacks.

Molten Fist. +6 to hit, reach 5 ft, 9 (1d8+4) bludgeoning plus 7 (2d6) fire.

Cinder Breath (Recharge 5–6). 15-ft cone; DC 14 Dex save, 18 (4d8) fire (half on success). Ignites flammable objects.

Talos Overseer (Mini-Boss)

	STR	DEX	CON	INT	WIS	CHA
sc md sv	18 +4 +4	14 +2 +2	18 +4 +4	14 +2 +2	12 +1 +1	10 +0 +0

Medium Construct (Animus Core Avatar) · CR 5

AC 18 | HP 110 (13d8+52) | Speed 30 ft, hover 10 ft

Skills Arcana +5; Immune poison, psychic, exhaustion + conditions

Gearlock Sync. Start of turn: one Legionnaire within 30 ft gains resistance to all damage until Overseer's next turn.

Overcharge Core (Recharge 6). Undoes one banked shutdown success unless a PC reacts with DC 15 Arcana.

Multiattack. Two Arc Lash attacks.

Arc Lash. +7 to hit, reach 10 ft, 12 (2d6+5) force.

Command Legionnaires (no action cost, 1/round). One Legionnaire within 30 ft makes one weapon attack as a reaction.

Kyros, the Bronze Owl (Ally)

Tiny Construct, Unaligned · CR 1/2

AC 14 | HP 10 | Speed 10 ft, fly 40 ft

Skills Perception +6

Scout. Can fly ahead and report hazards/enemy positions.

Shutdown Assist (1/session). Auto-succeeds one shutdown check at the Ichor Valve in Encounter 3.

Item & NPC Reference

Key Item

The Aegis Pin

A cold bronze nail etched with spiraling script, given by Kadmos at the outset.

Note attached: "Seek the ichor-valve at heart or heel. Turn the pin thrice. The bronze giant will sleep, not die."
Function: Required to attempt shutdown checks at the Ichor Valve in Encounter 3. Without it, the valve cannot be engaged at all.
Secondary use: Can also disable a single lesser construct (Bronze Sentry or Legionnaire) instantly if inserted into its back-panel port as an action — usable once per encounter.

NPC Quick Reference

Kadmos (Hephaestus in disguise)

Role: Quest giver, dockside smith at the Drowned Anchor tavern in Amnisos.
Motivation: Wants Talos disabled, not destroyed — he forged it and refuses to let it be slain like a common beast.
Secret: He is Hephaestus in mortal disguise; reveals this only if directly confronted with divine-detecting magic or if the party succeeds a probing DC 18 Insight check.
Roleplay notes: Speaks plainly, undersells his own power, deflects gratitude with dry humor. Will not fight alongside the party — "a god's hand is heavier than it looks."
Stat line (if forced to act): Treat as a CR 10 humanoid with resistance to fire and an at-will heat metal-like touch; he will avoid combat whenever possible.

Ikara of Knossos

Role: Rescuable artificer-scholar, descendant of Daedalus's workshop apprentices; recruit from Encounter 1.
Motivation: Obsessed with proving her lineage's worth by saving Talos rather than watching it be destroyed.
Secret: She has partial, half-remembered schematics of Talos's interior — the source of her Encounter 2/3 assistance bonuses.
Roleplay notes: Anxious, talks fast when nervous, lights up when given a technical problem to solve.
Mechanical benefit: Grants advantage on Investigation/Arcana checks related to Talos's mechanisms in Encounters 2–3 if rescued.