History of english literature

Canto VII
Escape. Don Juan and John Johnson escape the harem in company of two women. Consequent to fleeing the palace of the Sultan of Constantinople, the four reach the Danube river during the Russian Siege of Izmail (1789–1790), a Turkish fort at the mouth of the river, on the Black Sea. The Imperial Russian Field Marshal Alexander Suvorov is preparing the final assault against the fortress at Izmail. As the battle for the fort rages, Prince Grigory Potemkin, the Russian commander-in-chief, orders Marshal Suvorov to "take Ismail at whatever price", for the greater glory of Catherine II, the Christian great empress of Russia. In the event, John Johnson presents himself to Suvorov (with whom he fought in battle at Widdin, in Bulgaria) and introduces his friend Don Juan, saying that both men are ready to join the Christian fight against the pagan Turks. Marshal Suvorov is very unhappy that John and Juan have appeared at the Siege of Izmail, in company of two women who claim to be the wives of soldiers. To assuage Suvorov to consent to the women remaining with them, Juan and John tell him that the women aided their escape from the Turks.
Canto VIII
At war. As brave soldiers in the Imperial Russian army, Don Juan and John Johnson prove fearless in the savagery and carnage of the Russian siege upon the Turks. To conquer the fort of Izmail, the Russians kill 40,000 Turks, including the women and the children. Being a man of noble character, Don Juan rescues a ten-year-old Muslim girl from two Christian Cossacks intent upon raping and killing her for being a pagan. In that moment, Don Juan resolves to adopt the girl as his child. In the course of battle against the Christian Russians, a Tatar Kahn and his five nobleman sons valiantly fight to the death. From the aftermath of the Siege of Izmail, Don Juan emerges a hero, and then is sent to Saint Petersburg, accompanied by the rescued Muslim girl; he's vowed to protect her as a daughter. The end of canto X reveals the girl's name: "Leila".