From a reasonable distance, Sinclair can hear the short-lived tussles of splicers that get in Jack's way. Jack disappears and reappers often enough for Sinclair to at least keep track of where he is, but he hears the jingle of the Gatherer's Garden and when Jack vanishes around a corner, Sinclair lets himself rest by a wall and wait for him to return.

He should probably get this bandaged again before it gets infected or something, but there aren't a lot of options where they are.

"See it, kid?" he calls out. "You oughta be able to skip straight to the second upgrade."