Surviving Kalmatta: A Player's Guide to the Treasure Vaults of Zadabad was written by Carl Bussler and Eric Hoffman, with cartography by Carl Bussler and Eric Hoffman. The publisher is Stormlord Publishing.
This product is a guide for players who are going to face the challenges of The Treasure Vaults of Zadabad. Kalmatta is the main island that the adventure takes place on. The Guide serves to orient the PCs without giving away any of the adventure’s meat, and to provide a place for players to make notes, maps of their own, or fill in the unmarked map of the island itself.
The pdf is free.