I Believe in You — Barbara P. Conklin

For the first time in her life, Penny Snow isn't looking forward to her summer vacation in Oregon. In the past, a visit to her grandfather's beautiful beach house meant lots of swimming, tennis, and carefree good times. But this summer Penny's grandfather is moving to a rest home, so she has to help empty the house that holds so many memories. And because of her recent accident, she's afraid to join in the fun the way she used to.
The only bright spot in Penny's summer is her friendship with Bill Davis, her grandfather's young helper. He has faith in her and believes she can be active once again. But is his love enough to overcome Penny's fears?