Falling Darkness by Karen Harper

Claire Britten’s training never prepared her for this the forensic psychology curriculum didn’t cover plane crashes. Or how to help fellow survivors cope, seven frightened people huddled in two small rafts awaiting a rescue that may never come. Especially when three of them are your ex-husband, your young daughter and the man you love, Nick Markwood, whose pursuit by a criminal mastermind forced you all to run in the first place.

When the bedraggled crew finally reaches dry land, they are still far from safe. Nick tries to secure transport to their witness-protection placement, urging everyone to stick to the identities laid out for them. They don’t need any complications. But when danger follows them to their supposed safe haven, Claire and Nick no longer know who is helping or harming them. Racked by doubt and mistrust, still hunted, they must band together or fall.