Cute story.
And of course, Superman actually did have a super-horse named Comet back in the Silver Age.
Of course, a horse and a mask is actually a better disguise than a change of hairstyle and glasses.
If the masked man possesses all of "our" Clark's powers, it's interesting that he would choose to use a horse rather than to fly; even in his disguise, he is still holding back on what he can do. I wonder what it says about Lois that she made this choice for her character?
Joy,
Lynn
