Where could they be hiding?

Introduction

We have more trouble from the ratkins than from anyone else in the region! But there's hope. We believe we're close to where they're hiding. We found a wounded ratkin in the forest. We chained him in an old cave nearby. Now that he's a tad stronger, we've thought of something... if we let him go, we reckon he's going to lead us straight to the burrow. Unfortunately, we can't do that ourselves. We're just miners. We don't particularly enjoy forest walks and we're afraid of running into more ratkins. You, on the other hand...

Cunclusion

Well done! You did it! And the ratkin never suspected a thing!