The cover features a character in a Cosmo Cat costume, but he doesn't resemble the actual Cosmo Cat character.
Despite featuring Pussy Katnip and (a character who might be) Cosmo Cat on the cover, there is neither a "Pussy Katnip" nor a "Cosmo Cat" story inside
Jack Lane is a house name and not the name of an actual person.
No dialogue, just symbols and musical notes.