audacious

I might spoil my own game, and even be ordered off the premises, if I were too audacious, for I was still conscious that I was being watched.

He knew our number, knew that Sir Henry Baskerville had consulted me, spotted who I was in Regent Street, conjectured that I had got the number of the cab and would lay my hands on the driver, and so sent back this audacious message.

It’s the man himself, by all that’s wonderful and audacious!

Contemporary publishing stalwarts dismissed his audacious concept as an unviable folly, convinced that cheap paperbacks would cannibalize their lucrative hardcover sales.