Adventure description from front page:
Christa, wily Greyhawk City thief and darling of the Green Dragon Inn, was about to retire at the glorious age of twenty-nine. However, she had to do one last job for an old friend, so she found a way to break into the legendary Lords' Tomb and steal some priceless jewels which once belonged to the dearly departed of that dread complex. For a while it all looked pretty easy... far too easy. An adventure for characters level 1 to 12.