Still needing a beta...
The night was a good time. A run in the moonlight lawn around the lake. Or even a romp in the Forbidden Forest. Harry tentatively took a step onto the lawn. And crouched. Eyes looking around surreptitiously, not wishing for anyone to see what he was going to do.
His Invisible cloak, he hid in the corner under the bushes by the steps. He walked within the shadowy side of the castle. Keeping his profile in the dark.