Spirulina and the Stolen Treasure(2004)
(A book in the Mermaid Rock series)
A Picture Book by Kelly McKain
Spirulina's father, Neptune, has lost a competition to Ariel the air sprite and must hand over all his treasure. But there's worse to come. The treasure has mysteriously disappeared, and if it can't be found, Neptune will be forced to give up his home to Ariel. Coralie and Shelle can only wail and cry at the thought of their father losing the beautiful Floating Palace, but Spirulina is determined to do something about it.
Used availability for Kelly McKain's Spirulina and the Stolen Treasure
July 2004 : USA Paperback