Where did he go?

The wierdest thing has happened. When I woke up yesterday I could not find Sherlock at all. He was gone. No one has opened the door during the night and I saw him when I went to sleep. He must have fallen down from the balcony. I live on the 4th floor but there is no trace downstairs of him. In my work I often get calls from people who want me to find lost pets so now my skills are really put to the test to see if I manage to find my own cat. To be continued….