four o'clock
I will slip away before long , and make all preparation necessary . I will get a bagarino and a pony -- not from the Castelmare stables , you understand , but from a man I know and can trust -- and I will come with it to the door of your lodging at six o'clock . You will stay at the ball till the end . Everybody will go by four o'clock , or soon after . That will give you plenty of time to change your dress . By six o'clock every soul in Ravenna will be fast asleep . We shall drive to a little farm-house I know on the border of the forest , leave our bagarino there , and have our stroll under the trees just as long and as far as is agreeable to you .