A review from Goodreads
Content warning Spoiler at the end!
This was an enjoyable read. It starts with a mystery, the main character has to uncover what is going on with this secret DARPA project involving a teleportation device. But nobody tells him how it works so we follow along his exceptional visual memory skills trying to find patterns and explanations for some odd phenomena. It's all very sci-fi / mystery and then the book turns into a sort of horror tale with monsters from other dimensions. Entertaining!