બારીમાં હાઉબારીમાં હાઉ

"There is a BIG monster that only Montu can see, that shows up whenever he’s angry or sad, and makes him even more angry, even more sad. One day, when he hurts his leg and is stuck at home, he starts to draw. He draws the window, the tree outside and… the monster! But as he keeps drawing, the monster gets smaller and smaller. What’s happening?"--Publisher's website.