Wolfe published her first novel The Calling in 2008, released simultaneously in Canada, the United States and the United Kingdom. While the book has received good reviews, speculation as to the author's real identity has played a large role in many of the reviews. Canadian reviewers have suggested Linda Spalding, Michael Redhill, Jane Urquhart and David Adams Richards, among others. American reviewers have suggested Margaret Atwood, and Farley Mowat. UK critics have not written about the issue.

In July 2012, Michael Redhill confirmed that he was the writer behind Wolfe's works.