A. A. Fair 
Give ‘em the Ax [EPUB ebook] 

THE RIMLEY RENDEZOUS was a back-street bistro where a tired businessman could drop in for a pick-up, no questions asked.The cover charge was steep, Blackmail was the major part of the tab. It was a lucrative business-until a murderer cut into the profits…and left his weapon in Donald Lam’s car.The famous team of COOL and LAM at their fast-moving, quick-thinking best."Many enthusiasts like Erle Stanley Gardner even better in his disguise as A. A. Fair"