Collins brings the Queen of Crime, Agatha Christie, to English language learners. Collins brings the Queen of Crime, Agatha Christie, to English language learners. Agatha Christie is the most widely published author of all time and in any language. Now Collins has adapted her famous detective novels for English language learners. These readers have been carefully adapted using the Collins COBUILD grading scheme to ensure that the language is at the correct level for an intermediate learner. This book is Level 4 in the Collins ELT Readers series. Level 4 is equivalent to CEF level B2 with a word count of 20,000 - 26,000 words. Each book includes: * Full reading of the adapted version available for free online * Helpful notes on characters * Cultural and historical notes relevant to the plot * A glossary of the more difficult words Ten strangers are invited to a tiny island, each for a very different reason. Over dinner on the first night, a recorded message accuses each of the guests of a serious crime, all of which they deny. Then, by the end of that evening, one of the group is dead. A storm rises - now no one can come or go from the island. Then another dies, and another. The killer has to be one of them - but which one?