A New Kind of Being — Robin Buckallew

When someone releases all of Phoebe's enemies, she must fight them and win or the mysterious witch leading the team will own Phoebe...and Galaxzis. The trail leads the team to Iceland and back home, where Phoebe is helped by an enemy and betrayed by a friend. All her skills will be challenged, and she will face the biggest fight of her life. She is only allowed one helper, and her helper is an untrained, inexperienced witch. The odds are against her.