The castle in the sea

"Twins Will and Annalie Wallace continue to search for their missing father. As the Admiralty closes in, Will, Annalie, and their friends Essie and Pod must evade capture--and pirates--while tracking Spinner's movements around the world in their small sailboat. Following a coded list, they...

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Bibliographic Details
Main Author: McConnochie, Mardi
Format: BOOK
Published: Pajama Press 2019
Series:The flooded Earth 2