![Behind the Walls of Terra](https://nationalbookswap.com/pbs/m/50/4450/9780722134450.jpg)
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Cindy K. (Cindy) reviewed on + 140 more book reviews
Behind the Walls of Terra is the fourth volume in 'The World of the Tiers' quartet. There is a secret no man could be allowed to learn, but Kickaha had to uncover that secret or watch his home world be destroyed.