*When they encountered each other in the Morlock tunnels, Wolverine and Sabretooth renewed their years-old enmity! In the midst of their battle, Sabretooth revealed a startling secret: he was Wolverine's father! The conflict continued even as the tunnels began to flood. Both combatants were swept into the East River, where Sabretooth vanished! An although Logan later discovered that Sabretooth had lied, his hatred for his enemy had not diminished! *Source: Back of Card