Knock, knock, knock! A crisp knock sounded on the door.
A frog placed in a cage on the table immediately opened its mouth and shouted, "Ribbit, ribbit! Someone is knocking! Ribbit, someone is knocking!"
This was the 'doorbell' that Heath had made. Other than that, he had also made 'Cat's Eye', 'ladder', and so on. After all, he would always spend a lot of time in the laboratory. During this period of time, it would be very inconvenient if someone came to look for him.
"Who could it be in such heavy rain?"
Heath glanced at the pouring rain outside the window and then turned his head to look at the crystal ball 'Cat's Eye' on the table next to him
At this time, a picture was displayed on the Cat's Eye. In the picture, a burly middle-aged man was standing at the door wearing an oil-cloth cloak. It was Lily's father, Anlun.
