We shall try to come out as you will have done.

But if the cone still emerges, strike on its top with the ax that you will take with you.

We will hear you, and it will be the signal for us to demolish the top from our side.

You understand ?" "Yes, Mr.Dick," replied Bat.
"Go, then, boy," added old Tom, pressing his son's hand.
Bat, after laying in a good provision of air by a long aspiration, plunged under the liquid mass, whose depth then exceeded five feet.

It was a rather difficult task, because he would have to seek the lower orifice, slip through it, and then rise to the outside surface of the waters.
That must be done quickly.
Nearly half a minute passed away.