From the publishers blurb:
n the deep, it has awoken.
Hidden in the ruins of an old dwarven kingdom awaits a powerful relic, and an army kobolds are on the march to retrieve it. Dare the heroes enter this ancient place, and will they find the relic before the army arrives. In a race against time the adventures may unleash the greatest evil, while trying to save the world from a grim fate.
Tomb of the Dragon's Heart is a low-level OSR adventure suited for Labyrinth Lord and other oldschool retro clones.
The adventure was originally written for the Danish Living Campaign The Hinterlands, and it is for the first time presented in English. The adventure introduces the players to a different tradition of adventures, and it one with a focus on exploration and encountering the unknown.
The adventure contains new magical items and relics and new monsters to challenge your players.
Tomb of the Dragon's Heart also functions as a prequel to The Flooded Temple.