on the horizon

Thanks - enjoyed it, and completely logical.

Fun to solve, good difficulty level -- but what's it about?

WHEW!!! This one is TOUGH!!! I have been working on it for about 40 min and am still only about 1/2 way done!! Of course, I have been spending 8 hrs a day packing for our move in 2 weeks so I'm EXHAUSTED and I think I fell asleep a few times while working on it! LOL I just can't seem to keep my eyes open these days and will be SO THANKFUL when we are in our new home and all this craziness is OVER!!! Unfortunately, I have to get back to work so I'm gonna have to come back to this one tomorrow! It's FUN though! I absolutely LOVE the challenging puzzles!! ~:)

Thanks.