Awhile ago I was in the middle of so many books at once, it became a habit to put them down and move on to others. Right now my on-hold list is 5 books, 4 of which are part of a series. Since I don't want to mix up the series and get confused, my TBR doesn't have all of them. However, I might continue or finish a couple of these series as well during the week.
Bittersweet by Sarah Ockler
This is the only stand alone on my list. I read about 50 pages before putting it down, so it shouldn't be too hard to pick up and finish quickly.
The Assassin's Curse by Cassandra Rose Clarke
I'm about 40 pages into this one. It's technically part of a series, however it does have one sequel which I also plan to read during the read-a-thon.
Harry Potter and the Order of the Pheonix by J.K. Rowling
If I have time after the other three books on my list, I am going to pick this one up. I've read over 200 pages of this already, but it is a big book - so if I do get around to it, I don't plan to finish.
This is actually my first read-a-thon, so we'll see how it goes! Hopefully I can stick to my TBR and get a ton of reading done through the week!