From cave art to emojis, symbols have played an important part of communication throughout history, but how are they given meaning and how do we understand them? E.B. ventures out to Bon Echo Provincial Park and learns how his clue is related to a powerful First Nations spirit. Meanwhile, Kyla finds out that her street sign clue has a lot less to do with royalty and much more to do with boating. In season two of The Mystery Files, Kyla and E.B. are ready to solve many more of history's mysteries!