The matter should be easy enough.
"We may as well start at once.

These fellows will quieten down presently, and will then be more likely to hear any noise we may make." Looking about, they went down by the stairs leading to the courtyard and walked carelessly across.

Taking care to avoid mingling with the excited groups and, at the same time, keeping as far from the torches burning in the courtyard as possible, they passed through the gate--which was standing open without a guard--and followed the zigzag road, with towers placed at its corners, each mounting two guns so as to sweep the approach.
There were two high walls on either hand, loopholed for musketry; and Abdool said that there was a platform, wide enough for two men to pass, along the whole length of it.

The road terminated in a heavy gate, some forty yards above that through the outer wall.

A bastion covered it so that, were the lower gate carried, an enemy would not be able to bring guns to bear against it.