Planning to hunt them, Cullen Bloodstone purchased the five captive Warwolves from the London Zoo. However, • --|A|-- • required the skulls of all the remaining Warwolves on Earth for a magic spell and sent Captain Britain and Excalibur to procure the skulls from Bloodstone.
Unknown to all, one of the Warwolves was pregnant and gave birth to a Warwolf puppy during the hunt. Finding herself unable to kill the pup, Captain Britain gave him to Rachel Grey.
After joining the newly commissioned X-Factor, Rachel moved with Amazing Baby into the Boneyard. Rachel has been training Amazing Baby as a tracker.
