If you've read Hiding His Witness, you know Reilly has two equally amazing brothers. Brady's book will be published in the fall of 2013 (it seems like a long wait, doesn't it?).
The 3rd brother, Harris, will have his book published at the end of 2013 or early 2014.
The most fun news from my editor was that HRS offered my last contract as a two book contract! I'll start work on that book soon after I get my thoughts organized.