The Innocent Sleep by Karen Perry

Harry and Robin are a married couple, living in Dublin, who are suffering tremendous grief. Five years ago, while living in Tangier, their young son Dillon was presumed dead after an earthquake destroyed the building they were living in. Harry had left Dillon home alone for a few minutes while Robin was working when the earthquake occurred. Even though they've moved back to their hometown of Dublin, it's been difficult to heal. Harry, however, believes that Dillon did not die in the earthquake. When he sees a boy who looks like Dillon, he decides he must track him down. He doesn't tell Robin about it, but searches on his own with the help of his friend, Spencer. Robin, meanwhile, discovers that she's expecting a child. Told through both Harry's and Robin's points of view, The Innocent Sleep explores loss in a family, along with the secrets we keep from each other.  It will be published in February.