Kessler, Liz <br/><br/>
Emily Windsnap and the Castle in the Mist. 

 - Cambridge, MA :  Candlewick Press,  2007. 
 - 204 
<br/><br/> When she incurs Neptune's wrath by finding a diamond ring buried under rocks in the ocean, Emily is put under a curse that will force her to choose to be either a mermaid or a human and split up her parents forever 
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<br/><br/><label>ISBN: </label>978-0-7636-3330-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mermaids - Fiction<br/>Rings - Fiction