When I went to our schoolhouse, Mr. S was cleaning in a front garden.
I asked why, Mr. S replied that an egg had been thrown by someone.
We doubted malicious mischief.
After school I watched a surveillance camera many times to find an offender.
At last I caught a moment when an egg was falling on the ground.
The egg came from the heaven.
From the heaven!
I understood that a crow holding an egg in its mouth had dropped an egg.