I'm puzzling over the setting: a lake in upstate with a mile long island the girls can easily canoe to would probably have be in the Adirondack Mountains, but they are never mentioned.And then to have wild horses on the island makes the setting even more implausible to me.Beyond that, the crime is one of the more stupid ones—does the perpetrator really think he/she can carry out his/her plans and not be suspected in the end?And we have the obligatory unfriendly suspect once again.Certainly not the best of this bunch.