I have a lot of favorites in this genre, but here are three:
1. Ready Player One by Ernest Cline (Fun story: Andrew and I met his father-in-law at a beer festival in Philadelphia)
2. The Martian by Andy Wier
3. Coraline by Neil Gaiman
Can I cheat? I also want to mention:
4. The House with a Clock in Its Walls by John Bellairs
5. Percy Jackson & The Olympians series
@dabbe #ThreeListThursday #HerosQuest #HeroQuest