The Ghost and the Doppelganger: Haunting Danielle Series

They say everyone has a double.
Walt's distant cousin, Clint Marlow, could be his twin. When the unscrupulous cousin arrives at Marlow House with his fiancee, he conceals his real reason for being there. But, unknown to Walt - and his cousin - the universe has its own plans, and none of them will ever again be the same.