It wasn't until I arrived at the police station that I knew that Caroline had disappeared after meeting me in the afternoon. The search team had been searching for her for a few hours before they found her at about 10 p.m. at the foot of the mountain. At that time, she was already in a coma and seriously injured.

The police guessed that she must have rolled down from the mountain.

The reason why they found me was that I had a call record with her last night. And the last message before her disappearance was sent to me.

The words of the message read, "Caroline, I've arrived. Where...