Cyrus Barker and Thomas Llewelyn mysteries

"London, 1892-Cyrus Barker is brought into a game of international espionage by the Prime Minister himself in the newest mystery in Will Thomas's beloved series. Private enquiry agents Cyrus Barker and Thomas Llewelyn receive in the mail an unexplained key stamped with the letter Q. Barker, recognizing it for what it is, uses the key to unlock an anonymous door in the alleyway, which opens to an underground tunnel leading to Downing Street. The Prime...

London, 1893, there is poisoner loose in the city, with deaths piling up, and private enquiry agents Cyrus Barker and Thomas Llewelyn are apparently his next target in Fierce Poison by Will Thomas. Private Enquiry agent Cyrus Barker has just about seen it all-he's been attacked by assassins, his office has been bombed, and evil-doers have even nearly killed his dog. But never before has a potential client dropped dead in his office. When Roland Fitzhugh,...