Second War of the Worlds

The Martians, having failed to invade Earth try to invade another parellel Earth, called Annwn. But Earth has sent help, in the form of H.G. Wells' book, Dr. Watson AND Mr. Sherlock Holmes! Forewarned is, after all, forearmed. With such knowlewdge, added to such devices as airships and a diving ram (a sub with a ram)how can they lose?Well, it turns out the Martians on Thor, the fourth planet in Annwn's system, have figured out the little germ problem after their scouts died out on Earth, have a better cannon (which does not misfire), oh, and they ALSO have gotten help from Earth in the form of Earthlings who think the Martians are Gods.So what happens when both sides are forewarned?