This actually happened to me in sixth grade; I think it was Tale of Two Cities. We had been practicing speed reading with some crazy machine that projects text on the wall with a moving window that only shows a few words. I could go really fast, so I calculated I could read the book in a few hours. After a couple of minutes of trying to read at my supposed rate I faced the fact that I had no idea what the book was about so far. Anyway,
Rate = 12 pages/hour
1232 pages / (12 pages per hour) = 102 2/3 hours
You have five days, 5(24)=120 hours, to read that. Theoretically you could do it. You probably have other things to do over that time as well, like eat and sleep and go to other classes. So you're not going to finish.
You should get the Cliff notes and read them. Or just read the first chapter, the last chapter and hope for the best.