Sam and his friends are attending the Camp Glow Summer Camp for three days, and they have had so much fun exploring and investigating. On the last day of camp, the campers were out on a nature hike when the camp counselor remembered that he locked the special lamp needed for the closing ceremony in this chest for safekeeping and he cannot find his keys. He is asking for your help. Use your knowledge about how light travels to solve the clues to find the keys to unlock the chest.