Lucifer Box has learned that Kingdom Kum is a CIA operative, and that they are both investigating the same case: the poisoning of obscure members of the British establishment with a deadly hallucinogenic drug called Black Butterfly.

The killer's trail has led the men to Jamaica, where the suspected next victim, Lord Battenburg, is about to chair the World Government Summit. Will they reach him in time?

Written and read by Mark Gatiss.

Set in 1953, this is the third in a trilogy of spoof spy novels detailing the devilishly daring adventures of secret agent, Lucifer Box.

Producer: Kirsteen Cameron.

Made for BBC Radio 4 Extra by BBC Scotland and first broadcast in October 2011. Show less