Book excerpt: A mysterious horse head seems to be floating in the bay at low tide. A painting in Jenna's room at her family's hotel invokes wild dreams of shipwrecks, a wailing woman and an underwater horse! When Jenna discovers the horse in the bay, she knows there's a connection--especially when she learns she not the first to have seen it! What is the mystery surrounding the horse, how is it connected to the Green Horse Hotel--and how will Jenna avoid treacherous tides and quicksand to find out?