The intriguing question for the reader at the end of this novel is: who is the impostor of the title? There are several candidates, for everyone is involved in some kind of deception, a pretence that they or what they are doing is something other than the literal truth. Galgut has cleverly combined a thriller plot with a consideration of the loss of innocence — all the characters have lost or are in the process of losing theirs. It makes for a compelling book. On the one hand, it is a page-turner as you long to know what is going to happen. On the other, you are left pondering the question at the beginning of this review. Is it Adam, or Blom, or Canning, or Baby? Or all of the above? Decide for yourself.