You do

"Sure, sounds good to me," you agree as the two of you stroll up the gentle slope. Mason seems content in silence and you still feel some embarrassment at inadvertently raising a painful subject and don't mind not talking.

You gaze around at the manicured grounds, marvelling at the display of wealth and power implicit in the beauty. Mason seems to be lost in his own thoughts looking ahead of himself at a point about twenty feet in front of him. It seems that his invitation to join him was just courtesy, and he had no wish of company. You feel some regret at having joined him, intruding on his mood, and wonder if you should make an excuse and slip away.

You're working on a way to do that politely when he puts out a hand and stops you, then tugs you behind some shrubbery. He nods up the hill and you turn your head to see a tall black man in gardener's overalls leave a stone outbuilding, closely followed by a pretty but plump schoolgirl. They both glance around furtively, then go their separate ways. Mason turns to you with a grin.

"Innocent little schoolgirls," he snorts. "What do you think those two were up to?"

You shrug, watching the two out of sight. "Is that what you came up here to see?"

"No, that's just a surprise. Come on, I want to show you something."