Claim: Both The Road to Omaha (the sequel to The Road to Gandolfo, which was written earlier on) are comedic thrillers written by MacKenzie Hawkins who used a pseudonym (a ficticious name that a person or group uses for a particular purpose) of Michael Shephard for the first book.
Evidence: Robert Ludlum While the earlier novel was originally published under the pseudonym Michael Shepherd, The Road to Omaha was released under Ludlum's name.