The lighthouse keeper's mystery / 
Ronda and David Armitage. 
 - London:  Scholastic,  2020. 
 - unpaged.  col. ill.  28 cm. 
<br/><br/> " Children's classic". [cover page] 
<br/><br/><label>ISBN: </label>9781407193854 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Beaches. Environmental protection.