You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who was the killer in then there were none?" whose answer is Emily Brent.
Each document should contain about 30 words, and these documents should contain useful information.

Query: "then there were none" Agatha Christie
Useful Output:

Doc 1: And Then There Were None is an excellent mystery novel, a pretty decent horror tale and it's made me really eager to check out more Christie.
Doc 2: “And Then There Were None” is one of the greatest masterpiece novels by none other than the queen of mystery- Agatha Christie. I choose to read
Doc 3: And Then There Were None is a 1939 mystery novel by Agatha Christie. It is one of Christie's most popular works and one of the best-selling
Doc 4: Just finished 'and then there were none'. That has to be the most ingenious and best mystery book I've ever read.
Doc 5: Dive into the suspenseful world of And Then There Were None (1945), based on Agatha Christie's bestselling novel!