I woke to the sound of running feet

lots of them passing by the barge there was also a sort of commotion.

Assuming that a crime was happening I stayed put and then forgot about it. Once I'd persuaded the damp firewood  to catch fire, I put the kettle on and wandered into the park. There, under a large gazebo, was a man in a Puffa jacket tidying away thermos flasks and bananas. I asked what had just happened

It's the Nike race, they should be at Kings Cross by now