Cat Castle

The kittens go crazy in the morning and consider the whole house to be their American Ninja Warrior workout site.  To try and contain their activities a bit this morning, I took all of the boxes I had at hand and made a 'cat castle' for them w/ hidden rooms and treats in unexpected places.  They loved it. It did the trick and they fell asleep after demolishing it.  This may be a way to keep both them and me occupied this winter - once a week I'll make a new obstacle course for them.