When a leisure cruise out to Bass Rock goes awry and a summer thunderstorm traps the investigators on the barren island with only a ruined castle and a run-down lighthouse as shelter, things can’t seem to get much worse. But as the storm rages on into the black night, they discover just how wrong they are.

The Ballad of Bass Rock is a 1920s Cthulhu Britannica scenario for Call of Cthulhu, written by Stuart Boon, ENnie and Origins award-winning author of Shadows over Scotland.