I'm guessing there are no online tutorials or anything, either.

[Joking. Mostly. Once he's clear, she grits her teeth as she prepares to exert force— she's determined this will be stronger than trying to break the lock by attacking it straight-on, and some of the door's rotten, water-logged wood does splinter, but it's not enough.]

... hm. It's a start, but we need something more. Maybe if the two of us try together?