内容简介：
Longford in Sussex is only known to tourists as a toilet stop for coaches and its picturesque village pond with the famous Longford ducks. That is until Grimston Manor is sold to the rich and mysterious Brother Arne, a religious leader of a sect that believes in interplanetary communication. The Atheoians are waiting for the aliens to land. Unknown to the Atheoians, their leader is really Robby Smith, a jewel thief in hiding from a number of rather unpleasant people. Twins Bert and Basil Broon are former partners of Robby, but when he stumbled on the steal of a lifetime, the Dammthescatt Crown Jewels during a state visit to Britain by the Emperor of Dammthescatt, to keep the treasure to himself, he betrayed his partners to the police. Now the Broons are out of prison and after Robby. And after the Broons are three members of the Dammthescatt death squad. Meanwhile, a group of elderly Longfordians have decided to turn to crime to supplement their pensions. A crime wave is about to hit Longford. The ducks are stolen from the pond, the supermarket appears to have been the subject of a foiled robbery, a riot occurs, a dentist is kidnapped, and the bank is almost demolished. Police Chief Inspector John Westbridge sends one of his men undercover to investigate the Atheoian cult. A flying saucer is reported to have landed in the manor grounds, and a man is seen apparently taking a body down into the sewers. A film of the bank robbers reveals something that is not human. Is Longford a British Roswell? Strange armed men in black are sighted, and the police fear some old ladies have been taken hostage. Has a Longford invasion begun?