He's gone

Dani Keller wakes up on her Seattle houseboat, a headache building behind her eyes from the wine she drank at a party the night before. But on this particular Sunday morning, she's surprised to see that her husband, Ian, is not home. As the hours pass, Ian does not return. Irritation shifts to worry, worry slides almost imperceptibly into panic. And then, like a relentless blackness, the terrible realization hits Dani: He's gone. As the police work methodically through all the logical explanations--he's hurt, he's run off, he's been killed--Dani searches frantically for a clue as to whether…