Ultimate X-Men Collection, Book 5

The X-Men struggle to deal with the death of one of their own - but before even a moment of silence can pass, the mysterious Mr. Sinister arrives, intent on giving the X-Men a lot more to mourn! Then, Gambit returns...but what does he want? The Fenris twins threaten to expose the Ragin' Cajun's past sins unless he obeys them. But with Rogue on the other side, to whom will Remy finally lend his loyalty? And what decision does Rogue make that will affect her budding relationship with Iceman? Collecting Ultimate X-Men #46-57.