Adventure of the Sinister Stranger

“The Adventure of the Sinister Stranger,” the second in a series of 12 mystery stories featuring Tommy & Tuppence, was originally published in the The Sketch on October 22, 1924. These tales were billed “Tommy and Tuppence—A Detective Series by Agatha Christie” and would later be collected as Partners in Crime. “The Adventure of the Sinister Stranger,” would become the sixth story in the collectio...