Flip felt satisfied. His feed trough was as full as all three of his stomachs, and he still felt the fresh, cold wind from the brisk workout he'd had in the corral that morning. He'd also serviced two mares, both of whom whispered and giggled about him when they thought he wasn't looking. But a twinge of guilt had settled on Flip's back like a donkey's heavy burden. There was something that only he knew that concerned SkyHerd. Something that could change the future of all the herds forever...