YA: A group of teenagers encounter a computer based magic that allows them to create worlds/planets/species of their own, at the end of the book this girl is alone on a pair of planets of her own creation with this turtle race she created

[Shirin]

Science fiction young adult computer magic

[Shirin]

I read this book when I was 12 so 2002 - I can’t remember much about the book except that it was a good read and it blew me away, I wish I’d remembered the book title, I just picked it up at the school library and returned it and forgot about it

[Ellie]

High Wizardry by Diane Duane

[Kris]

Shirin, I closed your duplicate threads. One thread per request, please.

[Evelyn]

Ellie wrote: "High Wizardry by Diane Duane"

That was my thought, as well!

[Shirin]

Thank you, I started reading High Wizardry through Overdrive and it does seem to be the right one - it’s bringing back a bunch of memories - appreciate it !

[Kris]

Shirin, should we mark your request as Solved?

Here is Wikipedia's plot summary - with Spoilers - of High Wizardry by Diane Duane: https://en.wikipedia.org/wiki/High_Wi...