Quag Keep and return to Quag Keep by Andre Norton (Greyhawk- Dungeons & Dragons)

In 1979 Quag Keep was the first novel based on the world of Dungeons & Dragons by  Andre Norton. 25 year later in 2005 she published return to Quad Keep.

Once, they were role-playing gamers in our world.

They came from different places and different backgrounds.

Now they’re summoned together by some magical force…to a land that mirrors the games they used to play.
Quag Keep

Can they band together to unlock the secret of their summoning–and rescue from the legendary Quag Keep the person who may be able to return them home?

Book 2 is here