Quag Keep

Quag Keep was the first novel based on the world of Dungeons & Dragons by the legendary grand mistress of SF/Fantasy, Andre Norton.  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 forceto 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?