num_pages: 220
description: "A human who travels alternate worlds finally finds a world that may prove too much for him...Earth."
language: English
title: Behind the Walls of Terra
titlecomplete: Behind the Walls of Terra (World of Tiers, #4)
genres: Fiction, Dungeons and Dragons, Speculative Fiction, Science Fiction Fantasy, Science Fiction, Action, Fantasy, Adventure, Novels
ratings_count: 1204
series: World of Tiers
publisher: Ace Books