It doesn't seem like its a problem at the moment. We had only 3 PCs, so I added a little side quest so that they would be level 3 after dealing with Tsuto at the Glassworks, but 2 more have joined the party, so a party of 5 at level 3. After reading Tsuto's journal, they have no interest in delving into what seems to them to be an unrelated cave when the threat at Thistletop is so imminent. I'm not looking for advice on how to force them into the dungeon crawl they don't believe is important, rather how can I use Erylium and the catacombs from here?