Eager, Edward. <br/><br/>
Magic by the lake. 

 - Eau Claire, WI :  E. M. Hale,  1962. 
 - 183 p. :  ill ;  20 cm. Lexile 740 700. 
<br/><br/> On a vacation with their mother and stepfather, Jane, Mark, Katharine, and Martha find themselves overwhelmed with a lakeful of magical adventures after Mark captures an ancient turtle that seems to have extraordinary powers. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Magic--Fiction.<br/>Turtles--Fiction.<br/>Fantasy.<br/>Space and time--Fiction.