Amos's cell phone rang. Then, he got up and walked out.

Outside the door, Clint Zuckerberg had just arrived with breakfast. He handed it to Amos Granger and spoke.

"Yesterday, I checked out the place where Miss George and the Old Master were at. There is something strange there. I took some pictures. Here, have a look."

Amos took the phone and swiped through the pictures. Clint spoke again.

"President Granger, look here. You would miss it if you don't look at it closely. There are some shallow tracks here. Whoever did it had deliberately covered their tracks and left some heavy footprints behind. That was why there were still...