Written by Marguerite Bennett. Art by Mirka Andolfo, Laura Braga and Carmen Carnero. Cover by Ant Lucia. The journey to Russia continues as Harley Quinn and Poison Ivy find a magical stowaway: Raven! Then, Supergirl and Steve Trevor's train to Russia is halted when Supergirl's reaction to Kryptonite knocks the train off its rails! How can she save her fellow passengers while fighting Russian spies, German spies…and Lex Luthor?!