SOLVED. YA Fantasy: Boy creates creatures in real world when asleep. First dinosaurs then changes depending on what he's been reading. They test him and is gifted with strong ESP. Spoiler ahead. [s]

[Shea]

See topic. Thanks for any help!
Author is a prolific YA writer.
Authors surname begins with a letter between C - H.
I remember approximately the location in high school library

[Kris]

Boy loses ESP in the end. (Copied from the original header. Added a spoiler alert.)

[Shea]

Thanks Kris

[Kris]

You're welcome.

[Rainbowheart]

When did you read it?

Is the boy a teenager, like high school age?

[Shea]

I read it in 1997. The boy is younger, like 8 or 9. It is 2 books, I think, with the same character/premise

[Shea]

Actually, I think the authors surname just popped in my head! Carbody or carmichael, something along those lines.

[Shea]

Oh wow, funny how the memory works. I've found it: Virtual Realities by Claire Carmichael

[Kris]

Glad you found your book, Shea. Here's the link - Virtual Realities by Claire Carmichael.