Uncharted lands

You kick off, launching yourself down the shaky bridge. You can hear the guide grunt in surprise behind you. Your paws crash down on the warm, dry wood. About halfway through the bridge, your paw crashes through a plank, sending your body tumbling into the weakened structure. The guide is fast behind you, scruffing you and shoving you down the bridge one step at a time. At the end, he releases you and ushers you quickly into the cave with an eyeroll.

In the struggle, you scrape the skin over your left ribs. It bleeds a little, but will heal just fine.

Inside the cave, warm lava lights the way. Small pools bubble and small streams flow from tiny cracks in the walls. Several boulders act as stepping stones across larger gaps, and small wooden bridges span other areas. Around the walls of the room, a thin edge navigates above any threat of lava. It is clear you need to get to the end of this room if you wish to continue your journey.

What do you do?