"I have put the departure on hold until the weather improves. In the meantime, I'm going to check the records first." *He spreads out the navigation chart from that time and the list of empty reports.* "I want to hear how you interpret this signal. It is good to check it out in person, but there is no need to jump in blind. I will not decide the answer alone today. Shall we find out together who left what at the observatory?"