Dalton kept his word and arrived at Emily's house within an hour.

When grandma went to the bathroom before leaving, Dalton took out the small glass bottle from his pocket and threw it to Emily.

"It's done. Put it away."

"Wow! Thank Alice so much!"

"You can just thank me."

Emily didn't understand what he meant. She looked at the bottle carefully. The brand-new liquid was almost transparent, but it was still light blue, which was not much different from the previous drug.

"Dalton, didn't you clean the bottle after you pour the original medicine?"

"Yes, I did clean it. It's spotless and has been sterilized." When Dalton spoke, he...