After Sola had replenished my coverings I again slept, nor did I awaken until daylight. The other occupants of the room, five in number, were all females, and they were still sleeping, piled high with a motley array of silks and furs. Across the threshold lay stretched the sleepless guardian brute, just as I had last seen him on the preceding day; apparently he had not moved a muscle; his eyes were fairly glued upon me, and I fell to wondering just what might befall me should I endeavor to escape. Read the passage from A Princess of Mars.

The setting affects the narrator by making him

angry at being held in captivity.
terrified of his alien captors.
curious about how to break out.
weary from trying to get away.