Can you help me, I'm looking for the name of a fantasy book
The world they live in is being attacked by an other dimension controlled by magic users I think, and they capture the lead character.
Thanks for asking! This is one of my absolute favorites. It's the first of Raymond Feist's Riftwar books, in print these days as Magician: Apprentice and Magician: Master. Unfortunately we've only got the second half in our collection - last copy of Apprentice was checked out last year and never returned. We can find it for you through inter-library loan, but if you can snag a fair price used I'd say it's well worth considering.