
Dino Mermaid Island
The Enchanted CoastDungeon 1/10
Updated 4/19/2026, 5:58:03 AM

Dungeon NPCs
No dungeon NPCs yet.
Events
Event 1
The Mermaid's Plea at Driftwood Tavern Pier
Read Aloud
At the bustling Driftwood Tavern pier, the mermaid matriarch Lyria approaches you urgently. She explains that her precious sapphire pendant has been stolen and asks for your help to retrieve it from the Isle of the Ancients. As a token of gratitude, she gifts you a small boat pulled by two swift dolphins for a quick passage.
Details
Lyria emphasizes the pendant’s importance, hinting it holds ancient ocean magic key to countering Varathos’s corruption. The dolphins are intelligent and can assist in quick travel and minor underwater scouting. This event sets the party’s goal and provides transportation advantages for the journey ahead.
Event 2
Ambush by Raptor Raptors
Read Aloud
As you disembark and step onto the dense foliage of the Isle, sharp rustling sounds surround you. Suddenly, a pack of swift, raptor-like dinosaurs bursts from the undergrowth, screeching and baring razor-sharp teeth. They fiercely defend their nesting grounds, charging to attack! After the clash, you notice a glint among the leaves where the pack leader fell.
Details
This is a dynamic combat encounter involving multiple swift Allosaurus beasts. Their pack tactics and speed require strategic positioning and quick reactions from the party. The raptors are territorial and will retreat if their alpha is defeated or the party gains a clear upper hand. Once the raptors are defeated or driven off, the party can search the area to find a small leather pouch containing 50 gold coins and a mysterious silver amulet with oceanic runes, hinting at ties to the mermaids. This loot can be a valuable currency or a key to later secrets.
Event 3
Evading the Stegosaurus Blockade
Read Aloud
Further into the jungle, you come face to face with towering stegosaurs blocking your path. Their massive plates gleam in the dappled sunlight as they graze, seemingly unaware of your presence. You must find a way to sneak past or distract these gentle giants to continue toward the ancient shrine.
Details
The stegosaurs are herbivores and not naturally aggressive but will defend themselves if threatened. Players can use stealth, nature knowledge, or clever distractions to bypass them. Failure to do so might provoke a dangerous confrontation or force a lengthy detour.
Event 4
The Shrine Guardian’s Fierce Defense
Read Aloud
At the heart of the ancient jungle shrine, a massive carnivorous dinosaur roars, its eyes fixed on you as it fiercely guards the stolen sapphire pendant and arcane treasures. The beast lunges forward, ready to defend its hoard with deadly force. The air is thick with the scent of damp earth and ancient magic. Leaves rustle as the dinosaur shifts its massive weight, muscles tensing for attack.
Details
This final encounter pits the party against a powerful Tyrannosaurus Rex guarding the pendant. The beast’s strength and ferocity test the heroes’ combat abilities and teamwork. Successfully defeating or driving off the guardian allows the party to reclaim the sapphire pendant, a vital artifact for the campaign's progression. Alongside the pendant, the dinosaur’s lair contains several arcane relics and valuable treasure, including a small chest with gold coins and a mysterious enchanted amulet. The loot provides both immediate reward and potential plot hooks for future adventures.
DM Map Cards
DM Map Reference
The Driftwood Inn
Dungeon map
Print: one_grid_05

1
Marker Legend
1. The Mermaid's Plea at Driftwood Tavern Pier
Event marker
DM Map Reference
Beach landing
Dungeon map
Print: two_grid_075

1
Marker Legend
1. Ambush by Raptor Raptors
Event marker
DM Map Reference
Stegosaurus Nest
Dungeon map
Print: one_grid_05

1
Marker Legend
1. Evading the Stegosaurus Blockade
Event marker
DM Map Reference
Dino Fort
Dungeon map
Print: four_grid_09

1
Marker Legend
1. The Shrine Guardian’s Fierce Defense
Event marker
Monster Cards

Stegosaurus
Large Beast | Unaligned | L9
HP
81
AC
9
Speed
40 ft
Init
-1
STR 23 | DEX 9 | CON 21 | INT 2 | WIS 11 | CHA 5
Actions
Spiked Tail: Hit +6 | 1d10 + 6
Plate Bash: Hit -1 | 1d10 - 1
Magic
Defensive Plates: 1/day, Concentration. Raises armored plates to blunt incoming attacks. (1d10 + 5)

Tyrannosaurus Rex
Huge Beast | Unaligned | L14
HP
105
AC
10
Speed
50 ft
Init
+0
STR 25 | DEX 10 | CON 19 | INT 2 | WIS 12 | CHA 9
Actions
Massive Bite: Hit +7 | 1d10 + 7
Tail Whip: Hit +0 | 1d10
Magic
Devour Bite: 1/day, Full Round. Crushing jaws deal huge damage and can restrain prey. (2d6 + 7)
Magic Item Cards
No image
Item Handout
Alchemical Herb Bundle
wondrous | common | L1
Value: 55 GP
The Shrine Guardian’s Fierce Defense
Description
Dried herbs used by healers and brewers.
Spells
No spells.

Item Handout
Chain Shirt +1
armor | uncommon | L1
Value: 185 GP
+1 AC when wearing this.
The Shrine Guardian’s Fierce Defense
Description
Light enchanted chain mail.
Spells
No spells.
Conclusion
Upon returning to Shorebreakton, the party is warmly welcomed back at the Driftwood Tavern, where they collect a well-earned reward of 300 gold pieces for their successful retrieval of Matriarch Lyria's sapphire pendant. This respite allows the adventurers time to rest, replenish supplies, and enjoy the town’s lively atmosphere, strengthening their bonds and preparing them for the challenges ahead.
