N or M?: B2 (Collins Agatha Christie ELT Readers)

The series N or M? is a great series for those who are looking for a challenge. The puzzles are difficult, but not impossible, and the characters are interesting and likable.

The N or M? series is a set of books that follow the adventures of a group of friends as they try to solve a mystery. The books are full of twists and turns, and the characters are always guessing at what will happen next.

I think it is a combination of all three. The content is definitely interesting and well researched, the characters are likable and relatable, and Jane Collingwood has a great voice that is easy to listen to.

The N or M? is a book by Agatha Christie that was published in 1941. The book follows the story of two detectives, Tommy and Tuppence, who are hired by the British government to find a mole within their organization. The book is fast-paced and full of twists and turns that will keep readers guessing until the very end.