When Varela undertakes responsibility for a jazz group making its debut in England, he soon finds himself with more problems than he bargained for and it isn't long before the band are serenading a group of spies to save the life of a musician.
Finding himself in trouble in Greece, Jarrell, a wartime colleague of Varela's, sends his ex-comrade a prearranged distress signal: a campaign ribbon and a torn half of a document - the two items that spell 'danger'.
Varela finds himself involved with the mysterious disappearance of top-secret flight plans from a Space Development Centre. At the request of a millionaire, he embarks on an intriguing escapade to recover the plans.
An American has been selling sunny Caribbean housing lots that turn out to be under muddy water, leaving angry buyers and Carlos with prefab houses that can't be built. He works out a plan to convince the greedy land dealer that the lots are worth buying back.
When a young girl goes missing from an exclusive ladies' finishing school. everyone suspects she has been kidnapped. Varela thinks otherwise and at the headmistress's request he sends Bill Randall to investigate.
Bill Randal, an employee of Carlos' firm, is taken in by a lovely heiress who convinces him to insure an antique collection being smuggled out of her country, which recently went socialist. When the lot is sunk at sea, Randal's on the hook.
Why won't the Palabria people receive an £11 million gift to their country? Bill Randall is sent to investigate - and finds himself playing the role of an African witch-doctor to encourage them to do so.