- Available: Check the locked chest at the dead end at grid B4 in Clock Tower 6F
- Rewards: Germanium Ring (accessory), 9500 EXP
There's a treasure chest on the sixth floor of the Clock Tower labyrinth and Elizabeth made Theo make a key. The problem is that he made the key out of ice, but you get as many chances as you need to get the key to the chest. The keys are at the entrance of the first floor of the Clock Tower, but before doing that, go the sixth floor first. Once you're there, you want to take the sole gondola and ride it east, then go around and move it south.
Return to the first floor (don't exit the labyrinth or the gondola will reset) and grab a key, then take the elevator to the fifth floor. From here, take the shortcut and head straight to the stairs leading to the sixth floor. When you're on the 6th floor, go through the shortcut on the north side of the first room, then ride the gondola north. Now you can reach the locked chest without having the key melt. Grab the item inside and return to Elizabeth to finish the request.