How we cite our quotes:
[Mary] could do that. She could infect a whole house with gaiety and she used her gift as a weapon against the despondency that lurked always around outside the house waiting to get in at Tom. [ . . . ] Mostly she was successful at keeping the dark things out of the house but sometimes they got in at Tom and laid him out (24.5)
Mary's home is like Biosphere 2, all sealed off to keep the bad stuff out. But that's kind of hard on Mary, don't you think? Sometimes a girl just needs to get outside.