Sigsand opens Avatar's new Gravel series. William Gravel returns to England after some heavy globetrotting to find he's been replaced in the Minor Seven. They did think he was dead, but still. It turns out this new bloke bought his way in with the Sigsand manuscript - long thought to be destroyed. The other six each got a piece; now, they're all going to get a visit. From a very... unhappy Bill Gravel. But what danger does the Sigsand manuscript hold for the combat magician?