The dream began just as the others had: flying through blackness and following a thin, silver chord. Gavin stopped short inside an empty office. A large map of the U.S., speckled with dozens of red dots, hung in front of him. He slid through a wall to face several men in uniform, bent over blueprints which were splayed on a large, polished table. Their uniforms were like nothing he'd seen before. One of them raised his head and looked at Gavin. He was very, very angry.
(your hook starts here)
East 42, the subterranean training school for the Haven, seems like everything Gavin had wished for during isolated and boring summers spent poring over comic books. His classmates train in E.S.P. and telekinesis as he discovers his talent for astral projection. But after he projects into a top office for Haven security, he falls under the scrutiny of its leaders and becomes the target for Pellere, the ex-Prime based military group.
As Gavin uncovers the Haven's plans for the construction of a bizarre new weapon, he gains unlikely allies in his quest to thwart them. The fight escalates into a campaign on Washington and a war on the battlegrounds of the Astral Plane. Gavin Beckett and the Ward world above are about to turn down a frightening new road.
You splat at "falls under the scrutiny". First, isn't he supposed to be projecting? Did he happen on to something he shouldn't see? That's key info here.
You introduce the bad guys in the second clause of a compound sentence that makes them seem like an afterthought. Are they the bad guys?
And why is he opposed to Haven constructing a new weapon? Isn't he on their team? I want my team to have very big, very scary weapons. Killer Yapp is in fact commissioning a motorized sling shot in his ongoing arms escalation in the squirrel war.
I've stopped reading by the time I get to the last paragraph cause it's stopped holding together for me.
Start over. KY is available for armament consultation as needed.