I was laughing so hard at the antics of the little birds that it took me a minute to realize that I was the only one laughing. That, of course, made me frown - Didn't these people have a sense of humor? Then it dawned on me. They couldn't see the birdies! I looked at BeeGee and he had the audacity to wink at me! Why that little ... Imp! Somehow he could make me see what he was seeing. I looked in front of him and sure enough I could 'see' the invisible wall. <img src="/ubbthreads/images/graemlins/eek.gif" alt="" /> This imp was having a really weird affect on me! Just then all the birdies and the invisible wall just disappeared. I looked at BeeGee skeptically <img src="/ubbthreads/images/graemlins/suspicion.gif" alt="" /> and he just whistled a little toon and tried really hard to look innocent. Hummph!
I turned to Viper, "Viper, would you please fly up the wall, very carefully and see if you can tell how far up it goes?"