Click on the chattering teeth in Jane's room about 10 times. An egg should appear in your inventory. Go to your room (holding the egg) and set your alarm to 6 p.m. When you wake up, set your alarm to 6 a.m. while still holding the egg and see what happens.
Or, after obtaining the egg in inventory, go to the phone in Nancy's room and click on one of the buttons that's not labeled.
to Guest Room
Mystery Manor Home