Though the Invisible Man has previously expressed his desires , they were primarily represented through bettering himself and his race in compliance with the white idea of doing so. In fact, they were so calculated and lacking in emotion that perhaps desire wouldn’t be an accurate way to describe it.After realizing that he had been back stabbed, the Invisible Man exhibits a feeling of rage which we have not seen, a desire to kill. “Yes I thought, I owe it to the race and to myself. I’ll kill him”.  This is a significant transformation in the attitude of the Invisible Man.  One could argue that this is first time we truly see desire, as opposed to rationality. In this instance, he is consumed by it, overtaken by the very idea of revenge on the man who he once deeply respected, and we see it as a defining aspect of his character.