He evidently fears discovery or interference, in the state of helplessness in which he must be, confined as he is between dawn and sunset in his wooden box.
(b) How is he to be taken ?--Here a process of exclusions may help us.

By road, by rail, by water?
1.

By Road .-- There are endless difficulties, especially in leaving the city.
(x) There are people.

And people are curious, and investigate.

A hint, a surmise, a doubt as to what might be in the box, would destroy him.
(y) There are, or there may be, customs and octroi officers to pass.
(z) His pursuers might follow.