There are some far-fetched rumours about the caverns beneath the Citadel: some say the mages left their most dangerous secrets hidden there; others, that great riches are hidden there; even that gods have been imprisoned in its darkest depths.For Lord Frith, the caverns hold the key to his vengeance. Against all the odds, he has survived torture and lived to see his home and his family taken from him ... and now someone is going to pay.For Wydrin of Crosshaven and her faithful companion, Sir Sebastian Caverson, a quest to the Citadel looks like just another job. There's the promise of gold and adventure. Who knows, they might even have a decent tale or two once they're done.But sometimes there is truth in rumour. Sometimes it pays to listen. Soon this reckless trio will become the last line of defence against a hungry, restless terror that wants to tear the world apart. And they're not even getting paid.