The plot was evidently in execution, as Mr.Trotter had foretold.
Half-past ten o'clock arrived, and it was time for Mr.Pickwick to issue forth on his delicate errand.

Resisting Sam's tender of his greatcoat, in order that he might have no encumbrance in scaling the wall, he set forth, followed by his attendant.
There was a bright moon, but it was behind the clouds.

It was a fine dry night, but it was most uncommonly dark.

Paths, hedges, fields, houses, and trees, were enveloped in one deep shade.

The atmosphere was hot and sultry, the summer lightning quivered faintly on the verge of the horizon, and was the only sight that varied the dull gloom in which everything was wrapped--sound there was none, except the distant barking of some restless house-dog.
They found the house, read the brass plate, walked round the wall, and stopped at that portion of it which divided them from the bottom of the garden.
'You will return to the inn, Sam, when you have assisted me over,' said Mr.Pickwick.
'Wery well, Sir.' 'And you will sit up, till I return.' 'Cert'nly, Sir.' 'Take hold of my leg; and, when I say "Over," raise me gently.' 'All right, sir.' Having settled these preliminaries, Mr.Pickwick grasped the top of the wall, and gave the word 'Over,' which was literally obeyed.