How do I feed the wall on the first floor???

[Wordeno]

I've killed the Rat King, but after I full swept the rat apartment on the first floor. Help :(

[Jay the Deviant]

So far from what I've gathered, you either feed it a child (if you have one available) or one of your arms in order for it to let you go, don't know of any other option to escape without sacrificing either or.

[Random Asshole]

Have you visited the apartment on the first floor where you can hear a baby crying?