New X-Men: Childhood's End #1

It is M-Day and most of the kids at Xavier's wake up to learn they have lost their mutant abilities. Believing his powers to be gone, Kevin touches Laurie and withers her arm. With panic and mayhem rippling through the school, Emma and the Cuckoos use their telepathy to cause everyone to go to sleep so the mess can be sorted out. Two days later, a powerless Dani is asked to resign as all humans will soon be required to leave. Wolverine calls X-23 and asks her to come home and help. Two weeks later, Emma opens the front door and learns that Jay has had his wings amputated.