“What are you doing?” Andrea screams, stumbling backward. Her back hits the oak tree’s thick trunk. Escape is impossible. “I’m sorry. I’m not a very good rider,” Michelle says. She grins wickedly as the horse bellows. “This horse isn’t used to my riding style. I can’t control it.” Andrea keeps her back pressed against the tree. It’s probably lucky this tree is here, she thinks. It’d be more dangerous if the horse could chase me across open space. As it is, Michelle might be reckless enough to try to trample me here. Andrea scans the lawn, searching desperately for Andrew. When she sees him she wants to cry out in despair. He’s far out of earshot, and he won’t hear her screams for help. “What? Do you think Andrew can help you?” Michelle laughs. “If it’s Lance’s child, Andrew will owe m