Quarto wrappers tied with red ribbon. The covers are in good condition only, creased, bumped, lightly torn at the edges; the back cover stained at the head and reinforced along the outer edge. Apart from yellowing, the enclosed 'documents', intended to help the reader solve the murder mystery, are in excellent condition. The third of a four book Crime Dossier set, which according to BGG was an early progenitor of the modern mystery suspect / cold case tabletop games. No publishing date offered, 1938 taken Trove. The sealed section at back with the solution has been opened. "The Earl of Malinsay is dead, and ruin comes to an ancient family. Did the valet really murder his master, or did the mysterious foreigner send poisoned sweets to Viscount Raeburn? Whose handwriting is on the label and who put arsenic in the peppermints? Is the beautiful Countess conspiring with her lover or is the secret of the Malinsays hidden in the past?"