[ has the tone of an unspoken why not. They're being kept reasonably busy, at the Hightown base ("base"), but when he is spending so much time simply walking down the stairs with bundles of messages, then turning around to walk right back up them—why not. So:
He turns up, after fulfilling his most recent thrilling errand. Plainclothes. Drinking from a waterskin with one hand while he knocks on the door, guzzle broken off just time as he sticks his head in.
no subject
[ has the tone of an unspoken why not. They're being kept reasonably busy, at the Hightown base ("base"), but when he is spending so much time simply walking down the stairs with bundles of messages, then turning around to walk right back up them—why not. So:
He turns up, after fulfilling his most recent thrilling errand. Plainclothes. Drinking from a waterskin with one hand while he knocks on the door, guzzle broken off just time as he sticks his head in.
As requested.