Cosmo the Merry Martian #2

On the moon, Cosmo and Orbi are told by the Moonlings that the Dark Side of the Moon is inhabited by a terrifying unseen creature called the Gillywump, who emits spooky noises. The Martians go to investigate and find that the Gillywump is a harmless creature who makes \"GRONK!\" noises because he has a terrible cold. The Moonlings decide to visit Earth to find a cure for the Gillywump's cold. Meanwhile, Professor Thimk and Astra take off in a rocket to rescue Cosmo and Orbi.