sentences:  Ovid's bitter last letter "ex Ponto", written in 15 AD, alludes to Sabinus's response from Ulysses and gives titles for two other works by him, "Troezen" and "Dierum Opus", the latter of which is said to have been left unfinished upon his recent and untimely death.The 19th-century scholar Carl Gläser conjectured that the "Troezen" was an epic poem containing a history of the birth and adventures of Theseus, whose birthplace was Troezen, up to the time of his arrival at his father's court at Athens.The "Dierum Opus" ("Days' Work") he regarded as a continuation of Ovid's calendrical "Fasti", which was left unfinished when he died in exile.