Three days before Lucas's prep-school exams, Mom insisted Christian and I go to St. Patrick's Cathedral to say a prayer for him.
With exam season coming, the cathedral was packed. I sat on an old wooden pew and lit a white candle before the statue of the Virgin Mary. Palms pressed together, I prayed for my headache of a little brother.
'God, please let Lucas's exams go smoothly this time, and don't let him set off any more ridiculous disasters. And please, let the Lucas from 2035 get back to his own time safe, so he can hold his wife, Valerie…'
When I finished, I got up to find Christian. I passed through the grand nave and followed a long corridor out to the wrought-iron arch in the cathedral garden. There, in front of an old wishing wall covered in brass love locks, I spotted Christia
