Darwin's Angel is a book published in response to Richard Dawkins' The God Delusion.

He stated that he finds The God Delusion harmful in its failure to tackle the problem of extremism, and wrong on many important issues.

[1] In this book, Cornwell adopts the persona of the guardian angel of Charles Darwin and Gregor Mendel, who is now looking after Richard Dawkins.

[13] Anthony Kenny reviewed the book in The Tablet noting that both Cornwell and Dawkins fail to observe the prime rule of intellectual debate, that one should attack the opponent's arguments, not his personality.

She also suggested that both books are part of a modern debate that is suffering from the fact that the two sides do not concentrate on one definition of religion.