"Some days,' I say, 'I feel like I don't belong anywhere in that world. That world out there. 'I point to Grant. 'People walk down our street and people drive down it and people ride their bicycles down it and all of them, even the ones I know, could be from another planet. And I'm a visiting alien.' And aliens don't belong anywhere,' Adam finishes for me, 'except in their own little corners of the universe.'