Fetching Fiona and the Sketching Detective Solve the Crisscross Murdersby Jack C. McCormac Fetching Fiona and the Sketching Detective Solve the Crisscross Murders is the seventh book in the Jack MacKay mystery series. Book Trailer Fetching Fiona and the Sketching Detective Solve the Crisscross Murders from Jack McCormac on Vimeo. Fetching Fiona and the Sketching Detective Solve the Crisscross Murders is the seventh book in the Jack MacKay mystery series. Available in Kindle Edition Paperback