5339758
9780060743819
When an attempt to steal Shirley, a rare sea-unicorn, results in the sinking of their houseboat, ten-year-old Thora, her mermaid mother, and Mr. Walters stay at the estate of old friends and find a solution to the friends' financial troubles, but the would-be thief is still on their trail.Johnson, Gillian is the author of 'Thora and the Green Sea-unicorn Another Half-mermaid Tale', published 2007 under ISBN 9780060743819 and ISBN 0060743816.
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