Complex sentence: While looking for this face mask, Marlin and Dory see a light of in distance, they are quickly entranced by it only to find out that this is the light of a deep sea anglerfish.
Split into simpler sentences: While looking for this face mask, Marlin and Dory see a light of in distance. They are quickly entranced by it only to find out that this is the light of a deep sea anglerfish.