The little birds are very worried because they cannot remember where they have placed the key to their yellow house. Normally they would have searched and found the key easily but not today and that is because the surrounding has been altered by some visitors. Yes there are some notes that have useful clues written on them. However, the birds will need some help to follow those notes, find useful things from the surrounding and solve some puzzles while trying to find the key that will let them enter the safety of the yellow house that they live in. We hope that you can help the lovely birds.