Pathway to Spirit (Gillian Boone, #2)

After defeating an army of Callers, Gillian Boone wants nothing more than to return to the life of a normal teenager. But when her new boyfriend is abducted by something even worse than a Caller -- a Proxy of Spirit -- she has no choice but to jump back into the crazed world of the Marked, the Bound, and Spirit. Now, the race is on to get her boyfriend back and in one piece. With the help of Pops and some new allies, Gillian has a good chance to succeed. But then, she's also got Jackhammer...