Augusta Huiell Seaman's 'The Case of the Calico Crab' is a captivating mystery novel that follows the adventures of a group of teenagers as they uncover a centuries-old secret hidden within a small coastal town. Seaman's writing style is concise yet engaging, with detailed descriptions of the setting and well-developed characters that draw readers in. Set in the early 20th century, the novel provides insight into the mindset and lifestyle of the time, making it a valuable read for history enthusiasts. The mystery unfolds through a series of cleverly crafted clues and red herrings, keeping readers on the edge of their seats until the final reveal.