X-Men: Prelude to Onslaught

Collects The Uncanny X-Men #287-333, X-Men #25-50, Wolverine #93-100, X-Man #10-17, X-Men Unlimited #10-11, X-Force #52, Generation X #15, Cable #31-33, Excalibur #99. The road to Onslaught — seeds planted across the X-line leading to Xavier fall.