STILTON Thea <br/><br/>
The secret invention/ 
Thea Stilton. 
 - New York:   Scholastic,   2015. 
 - 112 pg.: col. ill., col. maps; 20 cm. 
<br/><br/><label>ISBN: </label>9780545808996 (pbk.):   9.80BND 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SISTERS-- JUVENILE FICTION<br/>MICE-- JUVENILE FICTION<br/>CHILDREN'S FICTION