Hidden Redoubt of Gilak Urser (5E)

From publisher blurb: Hidden for long years and wreathed in legendry, the Hidden Redoubt of Gilak Urser ever looms large in treasure-seeker’s dreams. Variously described as a pirate or adventurer in myths and folklore, Gilak Urser is universally thought to have been fabulously wealthy. His hidden lair—and his treasure-hoard—has never been found…until now… This Dungeon Backdrop is designed to work with the Ashlar campaign setting but can be easily inserted into almost any fantasy campaign.