Gittin 45: Rabbi Nachman's Righteous Daughters

A slave ran away from his owner in the Diaspora and made his way to the land of Israel, where the owner pursued him to bring him back. Does that work, or does he need to free the slave? Plus, the story of Abaye who has lost his donkey and identifies it only by its white belly, which is accepted as an identifying mark only because of who he is, not because it's that specific, as so many donkeys have white bellies. Also, a new mishnah: captives and the value for which they are to be redeemed. And another mishnah: more cases of tikkun olam, for the betterment of the world. Plus, destroying the Torahs of non-Jews or those who seek to corrupt the Jews.