Osborne, Mary Pope <br/><br/>
Monday with a mad genius 

 - 1st. ed.  
 - United States of America 
 - 144 p.  9 x 0.38 x 7.63 inches 
 - 2007 
 - Magic Tree House .
<br/><br/> Jack and Annie are on a mission to save Merlin from his sorrows! The brother-and-sister team travel back in the magic tree house to the period known as the Renaissance. This time, Jack and Annie will need more than a research book and a magic wand. They'll need help from one of the greatest minds of all time. What will they learn from Leonardo da Vinci?  
<br/><br/><label>ISBN: </label>9780375837302 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children's Literature<br/>Fantasy<br/>Action or Adventure<br/>Time Travel