The Secret of the Talking Map

Five weeks ago, Alex and Einstein left in search of Alex's missing parents - world-famous archaeologists. Rebecca and Joe are terribly worried that they are not getting in touch. Finally, Rebecca and Joe receive a short message from Alexander: "Returning tomorrow!" However, at the airport it turns out that Alex not only did not find mom and dad, but has also disappeared himself… Meanwhile, something inexplicable is happening in London: city buildings are blowing up one after another. Even the famous "London Eye" has sunk in the Thames! Inspector Clash is convinced that Alexander's disappearance is somehow connected to the emergency situation in London. But Rebecca and Joe are not ready to wait for an official investigation when their best friend is in big trouble. They will conduct their own!