Originally published in German, The Story of the Little Mole Who Went in Search of Whodunit is a hilarious tale about an aggrieved mole who goes in search of the culprit who pooped on his head.
The illustrations by Wolf Erlbruch are excellent, and effectively highlight the absurdity of the situation — the poor mole looks poo-sitively ridiculous! So as not to give away too much of the story, it suffices to say that after a good old-fashioned poo-lice investigation, poo-etic justice was served.
p.s. The images here were taken from the Chinese edition (是谁嗯嗯在我的头上).