Overview
On a mission to rescue Empress Justina's son from his pirate kidnappers, Hal and the brotherband crew set sail amid stormy seas to the island of Santorillos where they encounter a formidable obstacle, a caldera.
- | Author: John Flanagan
- | Publisher: Puffin Books
- | Publication Date: November 20, 2018
- | Number of Pages: 384 pages
- | Language: English
- | Binding: Paperback
- | ISBN-10: 0142427292
- | ISBN-13: 9780142427293
