From publisher blurb:
Prison of Spirits Betrayed!
For five hundred years, Cragbridge has stood abandoned and cursed. Within lurk the haunts and spirits of those that served Lord and Lady Etheril. Some of these ghosts inhabit the forms of strange insectile humanoids while others guard tombs deep beneath the shattered bridge tower.
Recently, the good knight Sir Dougal Skavok disappeared in the ruin, and when a search party returned, they twoo were missing a few members. But they carried strange treasures found there: coins marked with a double-headed raven, gemstones of great value and other ornate and gilded items.They also spoke of the evils that lurked there, cursed forever by the vengeful Lady Etheril.
The Curse of Cragbridge is a Swords & Wizardry Compatible adventure for characters level 1-3.