“Very effective... a nearly perfect, claustrophobic novella.” —The Wall Street Journal on the first book in the series, The ExtraIt's not a sequel. It's next in the sequence... A couple on an outdoor retreat meet their doppelgangers on a hiking trail and are soon tested on how well they truly know each other. The Other is the second book in the Outsiders Sequence series. This edition features a special preview of The Spare, the third and final book in the Outsiders Sequence.