Being a sister is super! Being a super sister is even better! From the pages of The Sisters and spin-ning out of Maureen and Wendy's imagination, these two siblings are donning flight packs and space suits to keep the galaxy safe! They battle intergalactic thieves and multi-limbed troublemakers but can all their sisterly-fights prepare them for their greatest foes: their clones? Available in softcover and hardcover editions.