Tom Swift's cousin, Ed Longstreet, is a rich man with a thirst for adventure. He uses his wealth in his quests to find and figure out archeological mysteries. This time, he is hot on the trail of a 100 carat gem with a curse. Everyone who has owned it, with only one exception, has died within a few years of selling or losing it. It isn't that Ed wants to own the thing… he is just curious as to where it might have been the past decade of so. And his curiosity takes him from his home state of Maine to Michigan, Lithuania and finally into the former Kabulistan.Can he find it? Or, will his efforts be rewarded by being tossed into prison?