The Doorway Omnibus

Trevor MacGilvey has disappeared after reciting a spell out of an ancient grimoire. He's left behind an open Doorway and a horde of shape-shifting creatures that threaten the safety of the entire community. Trevor's twin sister Sara and her friends discover the grimoire and begin translating it. But the solution they find proves almost as dangerous as the problem, and ultimately Sara is forced to risk her own life to stop the creatures' killing spree. To make matters worse, the Doorway has become an otherworldly beacon to a host of supernatural invaders, and dealing with each of them turns quickly into a round-the-clock mission. The group of friends take their responsibility very seriously, but even the most dedicated warriors can be vulnerable to forces beyond their control or understanding, no matter how well they've learned to roll with the punches. And at the end of it all, their primary goal is to rescue Trevor before it's too late - and to close the Doorway for good.