Malorie Blackman 
Dead Gorgeous 

When the mysterious stranger shows up at Nova’s parents‘ hotel, she thinks her luck has changed – until she realizes she’s the only one who can see him. Liam explains he’s been here a long time. And he can never leave, no matter how hard he tries. Soon, Nova begins to piece his tragic story together. But she’s hiding a secret of her own – one she’s desperate to keep from her family. And now Liam’s found her out . . .