Poisoned Pen by Arthur B. Reeve is a captivating mystery novel that kept me on the edge of my seat from beginning to end. The story follows detective Craig Kennedy as he investigates a series of crimes involving poisoned letters. As Kennedy delves deeper into the case, he uncovers a web of deception and betrayal that leads him to unexpected conclusions.

Reeve's writing is engaging and full of suspense, making it difficult to put the book down. The characters are well-developed and the plot is intricately woven, keeping the reader guessing until the very last page. I particularly enjoyed the way Reeve incorporated scientific elements into the story, adding an extra layer of complexity to the mystery.

Overall, Poisoned Pen is a thrilling and entertaining read that will appeal to fans of classic detective fiction. I highly recommend this book to anyone looking for a well-crafted mystery novel that will keep them guessing until the very end.

Book Description:
The many adventures of Professor Craig Kennedy were chronicled by Arthur B. Reeve (October 15, 1880 - August 9, 1936). Reeve was an American mystery writer who created 82 Craig Kennedy mystery stories. The stories have a very Sherlock Holmes type feel, In fact Kennedy has been referred to as the "American Sherlock Holmes". Along with his reporter friend, Walter Jameson, Kennedy solves many crimes and unveils mysteries using science.

This book contains twelve of Professor Kennedy's adventures. The interesting thing about these stories is Kennedy uses newly discovered science from his time period, which we take for granted today. The title story features the use of special inks. One which disappears in sunlight and one which appears in sunlight, so that the text on a note found in possession of a murder victim changes completely, making it almost impossible for Kennedy to track down the killer. Each story features a fascinating look at life in the early 20th century, and even includes some action along the way. (Introduction by Elliott Miller)