The caldera /
John Flanagan.
- U.S. edition.
- viii, 355, 59 pages : illustration ; 24 cm.
- Brotherband ; Book 7. .
- Flanagan, John 1944- Brotherband chronicles ; 7. .
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.