Radio puzzle
In this room, activate the radio, by matching the wavelength you control to the wavelength displayed on the radio, but make sure you have subtitles on before doing this. Once the radio is active, a message will start to play on loop. This message is different for each player, but what you are listening for is four keywords. These keywords are items found in that room.
For example, ours was “Mother returned with the cereal and erased it from the shopping list on the chalkboard. She realized her purse was still at the market as she reached for the broom to tidy up.”
Using the blacklight, check the four items for the combination for the safe. The code will be in the order the items are listed, with our solution being 7218. Every possible item that could appear in the message is in that room, so only search in there for the code.