Read by John Moffat this is a dark tale of family intrigue & murder. Available on CD for the first time. Sir Claud Amory has discovered the formula for a new powerful explosive which is stolen by one of the large household of relatives & friends. Locking everyone in the library Sir Claud switches off the lights to allow the thief to replace the formula on the table no questions asked. When the lights come on however he is dead & Hercule Poirot
- with assistance from Hastings & Inspector Japp
- has to unravel a tangle of family feuds old flames & suspicious foreigners to find the killer & prevent a global catastrophe.