The third mate of the Araby was puzzled. From the foredeck of his old tramp steamer he looked uneasily across a deserted wharf at the little Caribbean port of La Guaira, lying quiet and undisturbed at the foot of the Andes. Too quiet, thought Tod Moran as his gaze swept the empty street. At ten in the morning, with a ship just arrived in port, a whole town does not take a siesta, even in Venezuela.
(My Mentor Howard Pease continues) The protagonist is named, the setting is given, and the hook is the silence and emptiness of the dockside street at ten in the morning. Note that the reason for the siesta-like atmosphere is not disclosed, but the reason is just as much a mystery to the protagonist, Tod Moran, as it is to the reader.