Avery was impressed that Henry was game for this, and gave him an encouraging look. "Cool. Well, do you wanna hold this? It's a thermometer, it's for finding cold spots. If it drops by like, ten degrees in one go, that's a sign. I have my camera and this is an EMF, it picks up the frequency ghosts trigger when they're present. The ghost's name is Amanda Garrick. I'll do the talking, though." He pulled on a head-mounted lamp so he could have his hands free, and flashed Henry a thumbs-up. "Come on, lets try the kitchen first." He set of, stepping carefully so as to disturb the house as little as possible.