Okay, so it wasn’t quite the emotional reunion you were expecting—but that doesn’t alter your objective. You’ve still got to find a way of breaking mother out of here. Given that there’s a huge glowing lever right next to you, only the very dimmest of Heroes should struggle here. No, don’t fart on it. Stop that. There, yes, that’s right. Pull it. Well done.
With mother out of her cage, it’s time to make good your escape. Unfortunately, however, despite your best earlier efforts, the route back is crawling with enemies again. Even more unfortunately, once you reach the central circle in the Underground Passage, Jack of Blades himself appears. Your escape, it seems, has been thwarted before it could even begin.