https://openlibrary.org/books/OL25230777M.opds Attack of the invisible cats 2022-11-15T16:45:59Z Scott Sonneborn https://openlibrary.org/authors/OL2461436A/Scott_Sonneborn Picture Window Books Mankato, Minn 2012 48 p. : 006-008. RL: 2.9. GRL: J. eng https://openlibrary.org/books/OL25230777M https://archive.org/details/attackofinvisibl0000sonn urn:ISBN:9781404864818 urn:ISBN:9781404868472 2011014173