I found this book on a free bookshelf in the Ecole Francaise d' athenes hostel.

The Last of the Wine is Mary Renault's first novel set in ancient Greece, the setting that would become her most important arena. The novel was published in 1956 and is the second of her works to feature male homosexuality as a major theme. It was a bestseller within the gay community.[1] The book is a portrait of Athens at the close of the Golden Age and the end of the Peloponnesian War with Sparta, and includes Socrates as a character.
(From Wikipedia)