E. Phillips Oppenheim's "The Great Impersonation" is a masterful spy thriller that intricately weaves themes of identity, deception, and espionage against the backdrop of World War I. The narrative follows the gripping tale of a British gentleman who finds himself embroiled in a web of intrigue when he assumes the identity of a German spy. Oppenheim's adept use of suspenseful pacing and rich chara...