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In earlier books, three young college friends discovered timeless, secret portals into the alternate world called Tir Na Nog and successfully located two magical jewels. Now they seek a third jewel as struggles between noble ruling houses push them perilously close to war. Meanwhile, at home in the "real world, " an evil being is stalking family and friends of one of the young heroes. Now they must find the stone, defuse the increasingly volatile political situation n Tir Na Nog, and stop the evil one before he can destroy more innocent lives.