Secret Admirer (Fear Street #36) R.L. Stine - Vintage Paperback

Someone loves her...to death.

Selena's acting career at Shadyville High is blossoming. So when she starts receiving bouquets of dead flowers from a person called The Sun, she treats them as a joke. Then Selena's understudy is injured in a suspicious accident and Selena is nearly hit by a speeding car. Selena knows that The Sun, her number one fan, has become her number one nightmare.