Mystery on Graveyard Head, by Edith Dorian (epub/Kindle/pdf)
A SUMMER OF MYSTERY!
This is the story of young Steve and Linda and their exciting vacation in a Maine seacoast town. Into their days of summer fun came a number of interesting characters and the strange story of the past of Graveyard Head...
What were the weird, moving lights out on the ocean? Who had stolen Linda's painting of the "Dead Ship" from the summer art show? What was behind the mysterious Wiggins and his cunning ability at knife-throwing?
Tension mounts and Linda and Steve find themselves in a series of dangerous situations. Then, as they work together to unravel the strange mystery, summer friendship grows into romance...