Thistleshrub Valley

Have you ever seen Thistleshrub Valley? It's a mighty dangerous place, <name>. Those strange beasts there, I don't trust them for a minute! Gnarled thistleshrubs and thistleshrub rootshapers, that's what I think they were called... Anyhow, I want to get into the valley, but with so many of those thistleshrubs around, there's no way I'm going back there. But here's where you come in -- if you clear some of them out, I just might think about going back. What do you think, <name>? Help me out?