Tales of Terror & Mystery
"Nevertheless, when I dined at Rheims with Coselli and Gustav Raymond I found that neither of them was aware of any particular danger in the higher layers of the atmosphere. I did not actually say what was in my thoughts, but I got so near to it that if they had any corresponding idea they could not have failed to express it. But then they are two empty, vainglorious fellows with no thought beyond seeing their silly names in the newspaper. It is interesting to note that neither of them had ever been much beyond the twenty-thousand-foot level. Of course, men have been higher than this both in balloons and in the ascent of mountains. It must be well above that point that the aeroplane enters the danger zone--always presuming that my premonitions are correct.
"Aeroplaning has been with us now for more than twenty years, and one might well ask: Why should this peril be only revealing itself in our day? The answer is obvious.