Dark Horizon (The Fractured Time Trilogy)

"For now, I'll settle for the abbreviated version. What's going on?" "All right. We're involved in an intergalactic war and it's not going too well." "Why didn't you mention that before?" "We have ignored your world for centuries because of your barbaric ways." Billy and his friends must work with Xerxes and other members of the Council of Guardians. Their mission is to stop Pendragon, the alien leader, from dispersing a new secret weapon named Dark Horizon. Penny's handling of the shape-shifter traits she received from Seneca has disastrous results on her relationship with Billy. Things will never be the same as either victory or defeat will come at a devestating price for all.