G.M.馬列特多次提名阿加莎奬（最佳處女作、最佳小說），2008年《安逸作傢之死》提名為阿加莎最佳處女作奬。2014年，《異教徒的春天》（2013年作品）被阿加莎奬和黛麗絲奬提名。

From deep in the heart of his eighteenth century English manor, millionaire Sir Adrian Beauclerk-Fisk writes mystery novels and torments his four spoiled children with threats of disinheritance. Tiring of this device, the portly patriarch decides to weave a malicious twist into his well-worn plot. Gathering them all together for a family dinner, he announces his latest blow – a secret elopement with the beautiful Violet... who was once suspected of murdering her husband.

Within hours, eldest son and appointed heir Ruthven is found cleaved to death by a medieval mace. Since Ruthven is generally hated, no one seems too surprised or upset – least of all his cold-blooded wife Lillian. When Detective Chief Inspector St. Just is brought in to investigate, he meets with a deadly calm that goes beyond the usual English reserve. And soon Sir Adrian himself is found slumped over his writing desk – an ornate knife thrust into his heart. Trapped amid leering gargoyles and stone walls, every member of the family is a likely suspect. Using a little Cornish brusqueness and brawn, can St. Just find the killer before the next-in-line to the family fortune ends up dead?

Death of a Cozy Writer won the 2008 Agatha Award for Best First Novel, was short-listed for the Macavity Award for Best First Mystery, and has been named a semi-finalist for the IPPY awards in the category of Mystery/Suspense/Thriller. --May 2, 2009