Walls

Once upon a time there was a castle in a city. The townsfolk were really proud of it as its walls were strong and had protected them many times when the enemies attacked. For them the castle was a symbol of strength, but at the same time it was welcoming to them, always receiving them as friends. They thought the castle would be there forever because they had no reason to believe otherwise. 

However, inside the castle things were different. The queen would walk the inner part of the walls examining the new cracks that appeared after every attack. She would place her hand on them and watch them slowly crumble. She fought to keep them looking strong from the outside, fixing every flaw, but she knew those walls wouldn't hold much longer and that, when they fell, no one would be safe.