Sounds like you're playing from a walkthrough, if you already know what you can find in the cave.

The problem with walkthroughs (other than the complete loss of any sense of accomplishment) is that they often miss details: you get A by going to B, but they don't tell you what is needed before to get A.
Hint: Why don't you walk around in the cave, and see what else you can find? Is there anything you can change?