'I cannot bear it any longer,' the message read. 'If you love her more than me you must want to be rid of me. I won't stand in your way, my darling. I will simply disappear. Felicity.' Sally Combes has just finished a temporary job as a secretary to her uncle in Bermuda. As a farewell present he arranges for her to go on a cruise round the Caribbean. It seems an ideal holiday, but the night before the ship arrives in Bermuda, Felicity Fennister, one of the passengers, suddenly disappears. At fir