Wow, thanks for all the suggestions guys!
My friend has been bugging me to read the mortal instruments for a while, so I guess I will probably try that! I might try and get hold of another jodi picoult book - I read my sister's keeper and handle with care a few years back. I do enjoy fictional medical based books.
I don't want to go for anything too hard to read though because, aside from TFIOS and 'life of pi' I haven't read a book (that isn't a textbook) in about 2 years. bad, I know!