I don't own the Chronicles of Ancient Darkness, Michelle Paver does.
As opposed to going to present day, Jimmy went all the way back to 6 thousand years ago. He wanted a change of scenery, and he definitely got one. He can across a boy and girl who were traveling through the woods with a wolf. He saw the boy communicate to the wolf and thought that he had finally found somebody like him, but was disappoint to find the boy could only talk to wolves.
When Jimmy went down to see what they were doing and found that they were the least bit surprised to see him fly in. When Jimmy asked them why, they simply said it was because they had seen weirder.
Jimmy figured they were right after discovering that they had seen homicidal bears, an entrance to Hell, crazy moms, and many other disturbing things.
When Jimmy asked them what they did for fun, the girl named Renn said that they didn't have time for fun. This disappointed Jimmy, so he left that time period with a bang, literally.
There was a huge crater where he was standing after he disappeared.
a/n I think I am giving up on this story for now. There hasn't been any silences caused by my friend lately. I kinda have a stunted imagination and no time to read books.