The incident with the ox, the sheep, and well is, of course, a small greatest hits version of several famous cases from the Talmud, from a tractate commonly encountered by beginners. This scene in the book had grown organically out of the narrative - I hadn't seen it coming or taken notes on it until the Sword was actually narrating it - but as I reflected on it I realized I might be able to mine this motif further as things moved ahead.