Mothstorm
by Philip Reeve
The novel begins with scientists noticing a mysterious cloud apparently nearing Earth through the Solar System. Eventually the issue comes to Mrs Mumby's ears and she manages to convince the British government to send a ship to Georgium Sidus (Uranus) to investigate. Mrs Mumby also takes her children upon the expedition, Art and Myrtle. Upon arriving to the edge of the cloud the explorers realise that the cloud consists of a great flock of giant moths, and within the cloud lies a miniature solar system inhabited by the blue lizards, called the Snilth, created and controlled by the Mothmaker, who is later revealed to be a Rogue Maker. As the ship nears Mothstorm is attacked my Moth riders, during the ambush Art, Ulla and Sir Richard banage to evacuate and float down onto the surface of Georgium Sidus where they later come in contact with mer-people who live in the gas oceans. Jack and his crew are able to spot Art's signal flare and arrive to take them off the gas planet.
In the mean time, myrtle and Mrs Mumby are taken along with the crew of the ship to the Mothmaker, at which point Mrs Mumby recognises the Mothmaker as a fellow maker and the Mothmaker kills her, she later retakes the form of one of her old bodies when she meets up with Art and the crew of the Sophronia on the tin moon. She takes with her a small vial of essence which is able to kill a Maker.
By this time Mothstorm reaches Earth and the Snilth launch an invasion on England. in a turn of events art Mrs Mumby and Myrle are able to kill the Mothmaker and the Snilth all turn to myrtle of all people to teach them all how to become gentle ladies, and make Sillisa their queen after they discover that she is a descendant of a long lost line of queens, the last of which had attempted to rebel against the Mothmaker.
The book ends with the Snilth leaving Earth to put their mini sun to orbit Hades (Pluto) and inhabit the planet under the rule of Sillisa. Meanwhile, as a reward for Jack's services, enough antidote is produced to turn back all the Venusian colonists.