I think that No. 72 by Menander is an encouraging sign of more fertile fields beyond. He was a comic playwright and a boyhood friend of Epicurus (serving alongside him in the mandatory two-year military training from age 18-20), and some of his works are even still being rediscovered. They were almost entirely lost in the middle ages, but a number of discoveries in the 19th and 20th centuries have brought back a few of his plays. In several instances the sheets of papyrus were found in the paper lining of mummy cases.
I'm finding quotations on the internet attributed to him that are thoroughly Epicurean (it is absurd to think that the gods answer prayers, for instance), but nothing authoritative. If a good online source can be found we will need to look into it.