Ravensburger Escape Room Puzzle - The Observatory, 759 pieces.

Everyone knows escape rooms – and now there's also Escape the Puzzle! Puzzle - Solve the riddles - Find the solution. The mysterious illustration immerses puzzlers and players in a mysterious world where an "exit" must be found! Contents: a puzzle with 759 mysterious pieces, instructions and an example of the solution. Please note: the puzzle motif differs from the motif on the box. The Observatory. During an evening stroll, you discover a strange light in the sky. Out of curiosity, you go to the nearby library and search for information in the Astronomy section. As you pick up a book titled 'We discover space,' a letter falls at your feet. The note reads: My name is Professor Dr. Fresenius Gamomeus. I have been studying the stars and space for years. A few weeks ago, I discovered a strange object in the sky. I calculated its trajectory and concluded that it is heading directly for Earth! I decided to design a laser to destroy the object. Unfortunately, this could not be arranged legally in such a short time, and now I am afraid the secret service will catch me. In case I am arrested, I have hidden the necessary components in my lab. Hopefully, my message will be found in time, the laser assembled, and used to save the world! Sincerely, Prof. Dr. F. Gamomäus. After reading the letter again, you look up in disbelief and discover a door. You open the door and follow the stairs upstairs...