Arthur B. Reeve

"The Poisoned Pen" is a collection of twelve of Professor Kennedy's adventures. In these, Reeve uses the newest technologies of the early 1900s, which were nothing short of revolutionary for the time. The title story for example features the use of special inks, some appearing and others disappearing in sunlight, making the pursuit of a murderer incredibly difficult for the professor.

"The Silent Bullet" contains twelve of Professor Kennedy's adventures. Reeve uses the newest technologies of the early 1900s, which were nothing short of revolutionary for the time. In the title story, for example, everyone is wondering how somebody could have been killed by a bullet without anyone having heard the detonation.