Monsters

He did not dare to advance further, so he searched for a place to leave the jewel.

He found an empty space in the most inconspicuous corner and took out the purple colored jewel. 

[Link].

With a simple spell, the purple colored jewel shone for a couple of seconds, later on, it stopped. 

Placing the jewel on the corner, he used a piece of clothes to cover it and then placed rocks around to further the cover. 

After that, he looked at his surroundings and left.

Using the [Blink] spell once again, he reached the entrance. And found traces of the battle. He used twenty minutes to go back and forth. Now he needs to find the rest in ten minutes.

But before he could step out of the cave…

"There is nothing left here."

"Oh man, how can we receive fake news?"