A new mishnah! Going through the process of establishing the heifer whose neck is to be broken, in contrast to some of the details of the red heifer, through to the statement that is to be made by the elders, as a matter of innocence and atonement. Plus, a kal va-homer regarding the way the heifer might (or might not) become invalid. Also, what is the Eitan Valley? What is lost in this kind of murder? Plus, the idea of walking your guests out, just as escorting one out of the city has no measure. Plus, how the elders left the city to go die - in contrast to the body found that entails an eglah arufah. With a challenge to our co-learners to write up the contrasts if the city at the end of the daf