Instruct: Classify the given Amazon review as either positive or negative.
Query: Choicely written, absorbing novel.

Theo Nikonos is a private investigator of near-death experiences. For reasons unknown, Laura has had multiple near- death experience and is being kept in a drug-induced stupor and strapped to a table, hidden away. Theo discovers that her unseen captors not only believe her near-death experiences are real, but seek to use them for their own insidious purposes. Theo has to dodge boulders, bullets and other assorted perils as he races to liberate Laura from her unknown captors, realizing that the forbidden knowledge she holds may result in death for them both. Psychic meets psycho in The Authenticator, a fast-paced novel exploring life, death, and the darkness in between. A choicely written, absorbing novel, the kind so easy to pick up and so hard to put down.