Clarissa Harlowe or the History of a Young Lady, the longest novel in the English language, all 9 volumes in a single file by Samuel Richardson

According to Wikipedia: "Samuel Richardson's Clarissa, or, the History of a Young Lady epistolary novel, published in 1748, tells the tragic story of a heroine whose quest for virtue is continually thwarted by her family. It is commonly cited as the longest novel in the English language." Richardson "was a major English 18th century writer best known for his three epistolary novels: Pamela: Or, Virtue Rewarded (1740), Clarissa: Or the History of a Young Lady (1748) and Sir Charles Grandison (1753). Richardson had been an established printer and publisher for most of his life when, at the age of 51, he wrote his first novel and immediately became one of the most popular and admired writers of his time."