Everyone knows the scary bedtime stories from their childhood. You couldn't sleep and thought there was a monster living underneath your bed. That was the exact feeling we wanted to provoke with the sound design.
We used party elements like balloons and turned it into something scary.
What is the similarity between getting older and a good book?
They both can get pretty scary sometimes.
The library of Zuid-Kennemerland congratulates it's members by sending this animation on their birthday.