Susannah Charleson is the author of the New York Times bestseller, Scent of the Missing, as well as a flight instructor, service dog trainer, and canine search-and-rescue team member, who most recently began a non-profit organization called The Possibility Dogs, which rescues, trains, and places dogs with people suffering "unseen" disabilities. She lives with her search partner, Puzzle, a golden retriever certified for the recovery of missing persons, her service dog partner-in-training, Jake Piper, a German shepherd-pit bull-poodle mix, as well as a rabble of pomeranians, a chihuahua-cairn terrier mix, and two cats.