"The Os-Mine Hills are a group of hills located in Topaz territory. They were named for Ben Os-Mine and are home to a wide range of bird, plant and animal life. The Os-Mine Hills house the only known entrance to the secret sea and the Pirran Caverns, a fact known to very few Deltorans."@en . "Mid-east Deltora; northwest corner of Topaz territory"@en . . "Secrets of Deltora"@en . . "Os-Mine Hills"@en . . . . "Granous"@en . . . . . "Fidelis"@en . . . . "Tales of Deltora"@en . "Hunting ground for Topaz Dragons"@en . "topaz"@en . . "The Os-Mine Hills are a group of hills located in Topaz territory. They were named for Ben Os-Mine and are home to a wide range of bird, plant and animal life. The Os-Mine Hills house the only known entrance to the secret sea and the Pirran Caverns, a fact known to very few Deltorans."@en . .