In May 2016, Jon S. Dellandrea came into possession of a box of the last effects of an obscure artist, William Firth MacGregor. The contents of the box chronicled a major, and long forgotten, trial involving forgeries of the art of Tom Thomson and the Group of Seven. The Great Canadian Art Fraud Case takes readers back to 1962, a time when forgeries were turning up on gallery walls, in auction houses, and (unwittingly) being hung in the homes of luminaries across Canada. Inspector James Erskine, enlisting the help of A.J. Casson, the youngest living member of the Group of Seven, set out to discover where the forgeries were coming from. Dellandrea follows Erskine's investigations and the subsequent court case, investigating how unknown and down-on-their-luck artists like MacGregor were implicated and profiling the major characters involved in the case.