At Aboukir and Acre by G. A. Henty

Classic historical novel. According to Wikipedia: George Alfred Henty (8 December 1832 – 16 November 1902), was a prolific English novelist and a special correspondent. He is best known for his historical adventure stories that were popular in the late 19th century. His works include Out on the Pampas (1871), The Young Buglers (1880), With Clive in India (1884) and Wulf the Saxon (1895).