Mystery of the Megavolcano. Word Search Puzzle Solver. Mystery of the Megavolcano word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. Join "Nova" science detectives as they journey to Southeast Asia to reveal details of one of Earth's most destructive volcanic events. Known as the Toba eruption this cataclysmic explosion that occurred 75000 years ago is considered one of the most devastating natural occurrences in history. Watch scientists reconstruct this monstrous catastrophe as they ponder the fragile nature of Earth's crust and the power of the magma within its core. This includes identifying and searching for words that are related to : Michael Lumsden, Documentary .