New Incentive to Finish

So I requested a guilty pleasure book from the library (Heat Wave from the TV show Castle) and it is ready for me to pick up. I am not allowing myself to read this book until I am done with The Albigenses. Hopefully this will spur me on to finish. I have less than 200 pages left in volume 3and volume 4 is less than 300 pages. I think I can do it within the next few days.