"Grandpa! Is what he's saying true? How could that be possible?" Sherlyn Holt gasped in disbelief.

The old man let out a bitter smile and nodded.

"Yes, Sherlyn. Around midnight every night, I've been suffering from severe abdominal pain. I've had my medical team and a few highly regarded doctors examine me privately, but none of them could find the cause.

"Since I wasn't experiencing any other issues, I didn't want to worry you, so I kept it from you."

After revealing this, his expression