DiCamillo, Kate <br/><br/>
Mercy Watson : princess in disguise. 

 - Cambridge, Mass. :  Candlewick Press,  2007. 
 - 70 p  22 cm 
 - Mercy Watson .
<br/><br/> Persuaded by the word "treating" to dress up as a princess for Halloween, Mercy the pigś trick-or-treat outing has some very unexpected results. 
<br/><br/><label>ISBN: </label>9780763630140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pigs--Fiction<br/>Halloween--Fiction