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The Caldera Audiobook
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The Caldera Audiobook



by John Flanagan

  • Narrated by: John Keating
  • Length: 12 hrs and 8 mins
  • Release date: 11-21-17
  • Language: English

The Herons take to the high seas to fend off pirates and rescue the heir to an empire in the newest adventure from John Flanagan, author of the worldwide best-selling Ranger’s Apprentice!

In Hallasholm, Stig is contesting the annual Maktig competition to decide Skandia’s greatest warrior. But a late-night knock on the door brings someone Stig never expected to see again, along with a request the Herons are hard-pressed to refuse: a rescue mission of epic proportions. 

Across the ocean, the southern city-state of Byzantos is plagued by a crew of pirates who’ve kidnapped the son of Empress Justina. Slipping out of Hallasholm under the cover of darkness, the brotherband sets sail to recover the boy from his kidnappers, heading south to the island of Santorillos, where a near-impenetrable fortress stands atop a cliff, surrounded by a lagoon – a caldera – formed by the crater of a volcano. 

In this explosive seventh book in the action-packed Brotherband Chronicles, the Herons battle pirates amid stormy seas as the fate of an empire rests on their shoulders.

Additional information


John Flanagan

Narrated by

John Keating


12 hrs and 8 mins


Brotherband Chronicles, Book 7

Release date





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