This novel is set during the First World War, and revolves around the daring exploits of Beryl, an air-woman of remarkable skill and bravery. Excerpt: "Why, isn't that Beryl up in your 'bus?" he exclaimed, pointing out the machine. "I didn't know she was out to-day." "Yes," was Ronnie's reply. "She flew over to Huntingdon this morning to see her sister." "Was she up with you last night?" "Yes. She generally goes up daily." "She has wonderful nerve for a woman," declared George. "A pupil who has done great credit to her tutor—yourself, Ronnie. How many times has she flown the Channel?" "Seven. Three times alone, and four with me. The last time she crossed alone she went up from Bedford and landed close to Berck, beyond Paris-Plage. She passed over Folkestone, and then over to Cape Grisnez." "Look at her now!" Bellingham exclaimed in admiration. "By Jove! She's doing a good stunt!"