A review by donereadthat
Secret Admirer by R.L. Stine

dark mysterious medium-paced

• Plot- or character-driven? Plot
• Strong character development? No
• Loveable characters? No
• Diverse cast of characters? No
• Flaws of characters a main focus? No

2.5

I can see why these are written for teenagers. 
There was barely a conclusion to this. It like just stopped. 
And I'd figured out about the "Secret Admirer" was about 1/4 of the way into the book.