Ordinary Superheroes (Paperback) by Christopher T Lansdown

Millenia ago martian superheroes defeated an ancient evil, who was imprisoned on a moon of Jupiter. Neglected for centuries, the prison is about to fail, giving the ancient evil a second chance to wipe out all life in the solar system. Unfortunately, the martians have gone extinct so it's up to earth's superheroes to save the day. Worse, there's only one man who even knows of the threat, and he's not a superhero. On the plus side, training teams of superheroes to save the world is what he does. Mr Macho, Mockingbird, and the Mega Ninja were just ordinary college student/superheroes doing ordinary student things like attending class and ordinary superhero things like foiling bank robberies and catching drug dealers until one night when they returned to their apartment and found a strange old man with a mystical amulet sitting on their couch. Unfortunately, while he can teach them how to teleport to other planets, he has no idea how to repair the prison. Did the amulet pick correctly this time, and will they figure out what they need to do before it's too late?