Dan Cahill has appeared on the Message Board ten times, once being a blank and now locked post. His latest post, at 1:16, May 10th, 2012, was titled 'How to Steal a Famous Jewel' and related to Shatterproof, which was the latest Cahills vs. Vespers book at the time.
Dan in T39C
Although he is a Madrigal, his Message Board card says he is a Tomas.
Throughout the books, he is a main character, and the sister of Amy Cahill.
Dan's card
