In 'The Darrow Enigma' by Melvin L. Severy, a physician recounts his accidental rise to fame due to a chance cure of Mrs. P. His fame leads him to meet chemist George Maitland, who shares his interest in experimentation. The physician dreams of curing ailments by injecting missing chemicals into patients' blood, similar to how Cornell University had done with plants. Maitland seeks the physician's acquaintance to get to know Gwen Darrow, daughter of the physician's patient, John Darrow, which begins a complex web of secrets, intrigue, and mystery.