2nd in a 3-part series called Agents in Action. Published in the UK magazine Argosy, 04/1967. Printed in the collection .
A ruler of a Middle East country is coming to London for talks. Two different anti-royalist factions, the Taqi and Colonni, are expected to do something, like assassination attempts. Calder goes undercover to scope out the plans but finds himself put under control via drugs.