After London by Richard Jefferies

Felix had scarcely worked half an hour before Oliver returned and threw himself on the ground at full length. He had wearied of fishing, the delicate adjustment of the tackle and the care necessary to keep the hook and line from catching in the branches had quickly proved too much for his patience. He lay on the grass, his feet towards the stream which ran and bubbled beneath, and watched Felix chipping out the block intended to fit into the secret opening or locker.

"Is it nearly finished, then? " he said presently. "What a time you have been at it!"