"Race you!" Tonks called and the Doctor's smile eclipsed any other expression that might have been laying dormant on his face. "Oh ho ho!" The Doctor laughed, if there was anything he enjoyed more than a jog it was a competitive one.
Hearing her stumble over the root the Doctor looked over his shoulder to make sure she was alright. "It was a tricky one, I saw it coming," he taunted weaving their path back around the church and onto the main road.
"I'd say this is the best idea anyone's had for a while!"