The Guardians of Zoone (Zoone, Bk. 2)

Ozzie Sparks's life went from normal to out of this world - literally - when he traveled to the busy station of Zoone and saved the multiverse. He's been plotting to go back since he got home, but the door is stubbornly closed.

Until Zoone comes to him. But Ozzie's friends Fidget and tug aren't visiting from Zoone . . . they're escaping it. An evil robot overlord and his automatons have taken over the station, and it's up to Ozzie, a princess, a skyger, and one very overprepared aunt to try to save the multiverse (again).