The haunted shore / Neil Spring.

"When Lizzy moves to a desolate shore to escape her past, she hopes to find sanctuary. But a mysterious stranger is waiting for her, her father's carer, and when darkness falls, something roams this wild stretch of beach, urging Lizzy to investigate its past. The longer she stays, the more the shore's secrets begin to stir. Secrets of a sea that burned, of bodies washed ashore -- and a family's buried past reaching into the present.And when Lizzy begins to suspect that her father's carer is a dangerous imposter with sinister motives, a new darkness rises. What happens next is everyone's living nightmare . . ."--Publisher.