
Everything's cool in Silksong until you're stuck trying to escape The Slab with nothing but your bare bug fists. Getting out of bug prison is hard work. There are several guards and deceptively precise jumps standing between you and freedom.
The real reward for completing The Slab is getting out with your stuff back, but there's a Lost Flea to rescue, a Spool Fragment, and some Rosaries to collect there too.
Most people will probably find The Slab by getting kidnapped in Act 1, but it's possible to get there in Act 2 without losing your stuff. Being a completionist, I intentionally got myself locked up early on to see what the fuss was about, so the advice below is written from that perspective. It won't be as harrowing if you decide to wait until Act 2 though because you can leave at any time.