On a dark spring night, nine weeks behind schedule, the MNS Indestructible, a Class C Submersible Deepswimmer, departs Sancrist Isle with a crew of twenty and a callous disregard for the inevitable. Armed with top-secret devices, a band of intrepid gnome explorers sets out on a legendary journey to sub-navigate the continent of Ansalon and determine why very large rocks float. Though the fate of the world does not hang in the balance, theirs certainly does. This is their story--and the story of a single member of that ignoble crew: Conundrum, the heroic gnome featured in Margaret Weis and Tracy Hickman's best-selling War of Souls trilogy.