No, don't whisper to Oswald.

This boy,' he said to the injured fox-master, 'has been with me since seven this morning.

His tale, whatever it is, will be independent evidence.' But Denny would not speak, though again and again Albert's uncle told him to.
'I can't till I've asked Oswald something,' he said at last.

White Whiskers said, 'That looks bad--eh ?' But Oswald said, 'Don't whisper, old chap.

Ask me whatever you like, but speak up.' So Denny said, 'I can't without breaking the secret oath.' So then Oswald began to see, and he said, 'Break away for all you're worth, it's all right.' And Denny said, drawing relief's deepest breath, 'Well then, Oswald and I have got a pistol--shares--and I had it last night.