This is a sequel to Battlerise Outpost / Abandoned Outpost, but can be used independently as well.
As they explore an abandoned watchtower, the characters find a secret room with a spiral staircase that descends into the hidden basement. It hasn't been used in decades, but can the PCs puzzle out what it was originally used for? And will they survive what is currently living there?
Battlerise Safehouse is set in Forgotten Realms while Abandoned Safehouse is set in a generic fantasy setting. The contents are otherwise the same.