So, I think I'm almost done with The Rat's obnoxious trial-and-error cavern. I'm just after the motion-comic scene where he tells you to look for his son or whatever. There's an elevator I can activate with my slingshot which goes up to a higher level. On the bottom level there's a crate I can push onto the elevator. There's a raised drawbridge I could walk across from the upper level if it weren't raised.
Does anyone recognize this part and know what to do?