Raj Quartet and Staying On Spiral

I was sent book 1 and 5 and picked up the rest on e-mail, and have decided to send them on after I have read them. This would be an international spiral, which means the books are sent to the participants in order. People would be able to jump in part the way through if they have already read one of the books.
The Jewel in the Crown
Day of the Scorpion
Towers of Silence
Division of the Spoils
Staying On

If people would like to join, here is the forum link
http://www.bookcrossing.com/forum/20/5128004