It's the first major X-title crossover in many years, and it seems set to deliver with Ed Brubaker and Mike Carey heading the writing staff. Chapter One dropped last Wednesday in the form of the Messiah Complex one-shot, and while it didn't reveal much that hadn't already been revealed in advance solits, it was still a great set-up issue. So here we go! Mr. Sinister! Marauders! Acolytes! Purifiers!