The Beginner's GoodbyeBy: Anne Tyler When Dorothy came back from the dead, it seemed to Aaron that some people simply didn't notice. The accident that killed Dorothy involving an oak tree, a sun porch and some elusive biscuits leaves Aaron bereft and the house a wreck. As those around him fuss and flap and bring him casserole after casserole, Aaron ploughs on. But then Dorothy starts to materialise in the oddest places. At first, she only comes for a short while, leaving