Janet and 'Twice' Alexander are continuing their highly eventful lives on the volcanic island of St Jago when a letter arrives from Janet's friend Martha in New York. Martha's aunt is about to descend on St Jago to 'recuperate' from her third divorce. Will Janet see she keeps out of prison?
This sounds like a warning-and when the irascible Mrs. Secker swoops in, Janet's worst fears are confirmed. The new turn of events quickly involves the unfortunate Alexanders with a religious crank-as well as with the exotic beauty and 'femme fatale', Linda Lee.