Time Travel! 1000 Piece Wasgij Puzzle

Wasgijs are a mysterious puzzle concept where you have to work out the cause of the scene on the puzzle box image. Can you use the clues to determine what is making the characters react? Use your imagination and piece together what the characters on the box see. Only the puzzle holds the answer. This puzzle contains 1000 pieces and measures 19-1/4" x 26-3/4".