The idea of a mysterious manuscript found in a bottle has teased us ever since Edgar Allan Poe sent his hero to a horrifying death, allowing him only time to finish his story and hurl a bottle (and his story) in the general direction of posterity... But what if the bottle is found in The River Thames -and the manuscript is in a foreign language? Two kids from Essex, Beth and Ethan, cared for, as you might expect, by a nasty aunt, have to overcome...