Amazing Adventure Of Superman Year Pb Creatures From Planet X

"The World's Finest Heroes, Superman and Green Lantern, in one amazing adventure! When cape and ring team up, no problem is too big for these friends to fight. But when a swarm of unearthly beings strike Earth, Superman and Green Lantern will be fighting for their lives as they take on The Creatures from Planet X! A perfect chapter book for any young super hero fan."