"I mean," I shift my chair toward Leal, "the girl walked through this camera view and doesn't show up in that one." "She disappeared?" "No," I look away for a second, "there's nowhere to go. People can't disappear." Leal rewinds the footage and we watch it another time. "She's gone," I whisper. In the first book of the Alaster Trilogy, A. H. Ostmo shapes an underwater world that explores belief systems and...