The Silver Six / Lieberman, A. J

When a group of orphans flee to an uninhabited moon to escape their orphanage, their new existence is soon shattered once the man who ordered the death of their parents comes after them as well. Deciding their only course of action is to fight back, the kids form a team known as the Silver Six and take the fight to the enemy.

"When a group of orphans are thrown together under mysterious circumstances, Phoebe and her pal Oliver lead them in a daring escape from their orphanage to an uninhabited moon. But their idyllic paradise is shattered when the powerful corporate boss who ordered the deaths of their parents sends a relentless henchman to track them down. With nowhere left to turn and time running out, Phoebe and her friends decide there's only on thing left to do: fight back!"--Dust jacket flap.