Three
o'clock
She attempted , finally , to curl herself down and make a pillow of her arm , and there she sank into something akin to sleep . Gently Grenville thrust out his foot and lifted her head upon the cushion of flesh above his ankle . The night wore slowly on . Three o'clock came grayly over the world-edge , where the waves made a scalloped horizon . Slowly the watery universe expanded , as the dawn-light palely increased . By four Grenville 's gaze could search all the round of the ocean , but nothing broke either sky or sea . Five o'clock developed merely color on the water , but no sign of a sail or a funnel .