TY - BOOK AU - KUPPERBERG Paul AU - BURCHETT Rick AU - LOUGHRIDGE Lee TI - The shadow masters SN - 9781434227683 (pbk.) : PY - 2011/// CY - Mankato, Minn. PB - Stone Arch Books KW - SUPERMAN (FICTITIOUS CHARACTER) KW - JUVENILE FICTION KW - SUPERHEROES KW - FICTION N2 - Superman and Acrata must work together to defeat Eclipso ER -