Wings Over the Wine-Dark Sea

One-Shot · 6 Players · Level 8 · ~3–3.5 hrs · Trireme Naval · Harpies / Sirens / Jelly-witches

Style: Aerial → Charm → Aberrant Boss | Win: Defeat Fog-Mother Lampetia (0 HP or sink fog-skiff + Conch pulse while she is aboard)

Ship: Main 40×50 + bow 15 + stern 25 = 90 ft · center mast · 15 ft ram · optional 2nd ship fog-skiff (30×15). Entirely shipboard.

"When wings blot the sail and the sea begins to sing, breathe this shell — deafness is mercy, and mercy is a blade." — Conch of Relative Silence

Major Beats

Mist-trireme: Thetis-touched envoy + Conch maguffin.
Enc. 1: Harpies dive the sail (3 sections AC 11 / HP 15).
Enc. 2: Sirens (Mermaids) + merman consorts — song vs. steel / skill path.
Enc. 3: Fog-skiff; Lampetia + jelly-witches + harpies.

Creature / Enemy List

Creature	Easy	Med	Hard	Mini
Harpy	4	6	8	×10
Siren (Mermaid)	2	3	4	×4
Consort (Merman)	1	2	3	×3
Jelly-Witch	2	3	4	Jelly caster ×5
Lampetia (Boss)	1 adj	1	1	Boss jelly staging
Sea Spirit (optional)	0–2	0–3	0–5	×5

Difficulty Scaling

Tier	Adjust
Easy	Enc1: 4 harpies · Enc2: 2 sirens · Enc3: Lampetia HP 120, no LA, 2 witches
Medium ★	As written
Hard	Enc1: 8 harpies · Enc3: +1 witch; Lampetia LR 3; Dirge recharge 4–6

ENC 1 — Talons on the Sail

Medium · ~40 min · 6 Harpies · Sail 3× (AC11/HP15)

Luring Song Wis DC 11 (crew first). Climb rigging Ath DC 12 (½ cover).
Non-combat: Performance DC 14 shoo 2 harpies once.
≥1 sail survives → Long Rest; all destroyed → Short Rest (row).
Partial crew (2–3 PCs): 3 harpies; sail HP 10.

ENC 2 — The Sea Begins to Sing

Skill / Medium · ~50 min · 3 Sirens + 2 Consorts

Siren Song Wis DC 14. Overboard Ath DC 13 to climb ram/oar-ports.
Non-combat group challenge: 4 successes before 3 failures (Performance/Religion/Conch, DC 14) → sirens withdraw + Fog-Mother clue.
Conch: 10 ft auto-succeed song saves 1 round (1/SR).
Spare siren + Persuasion/Performance DC 14 → Enc3 Insight adv vs illusion fog.

ENC 3 — Fog-Mother Lampetia

Hard · ~60 min · Lampetia + 3 witches + 2 harpies · fog-skiff

2nd ship 30×15 grappled (3 lines AC12/HP10). Skiff HP 50.
Win: Lampetia 0 HP or sink skiff while she is aboard + Conch finale pulse.
Dirge Wis DC 15 (16 with siren nearby). LA: tendril / drift / call wings.

STAT BLOCKS

Harpy CR1

Medium Monstrosity · Mini ×10

AC 11 | HP 38 | Fly 40

Song Wis DC 11 · Claws +3 (2d4+1) · Club +3 · Sail priority

Siren (Mermaid) CR2

Medium Fey · Mini: Mermaid ×4

AC 13 | HP 45 | Swim 40

Song Wis DC 14 · Magic Res · 2× Dagger +5 · Embrace 5–6 Str DC 13

Siren Consort CR1

Medium Humanoid · Mini: Merman ×3

AC 14 | HP 32 | Swim 40

Trident +4 · Net 1/day Dex DC 12

Jelly-Witch CR3

Medium Aberration · Mini: Jelly caster ×5

AC 13 | HP 58 | Hover in fog

2× Tendril +5 (1d8+3 +2d6 poison, Con DC 13) · Fog cloud 2/day · Sting aura 1d6

Lampetia CR9 BOSS

Large Aberration · LR 2

AC 16 | HP 161 | Fly/Swim 30–40

3× Tendril +8 (2d8+3 +3d6 poison) · Dirge Wis DC 15 (R5–6) · Sow 2 witches 1/day · LA

Sea Spirit CR1/2

Optional ally clutter · Mini ×5

AC 12 | HP 22

Hide in fog · Recruit Pers DC 12 → extinguish sail fire once

KEY ITEM / NPC

Conch of Relative Silence

Wondrous Item (maguffin)

1/SR: you + allies ≤10 ft auto-succeed song saves until end of your next turn.
Finale once: witches/sirens Con DC 15 lose song/concentration 1 rd; 20 thunder to Lampetia ≤30 ft.

Thetis-Touched Envoy

Motivation: Stop siren-queen song before next convoy dies.
Secret: Song amplified by jellyfish-fog witches bound to the queen.

Ship Reminder

40×50 +15 +25 = 90 ft · ram 15 ft · ≤2 extra ships · fog-skiff optional Enc. 3.

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