Answer
The Three Musketeers is part of the d'Artagnan Romances, a series of historical adventure novels by Alexandre Dumas. The series follows the adventures of d'Artagnan, a young Gascon who travels to Paris to become a musketeer. The Three Musketeers is the first novel in the series and introduces the characters of Athos, Porthos, and Aramis, d'Artagnan's fellow musketeers.