10/18, 7pm
Poisoned Pen
4014 N Goldwater Blvd #101
Scottsdale, AZ 85251
Doug will be at the event in person and Linc will Skype in
http://www.poisonedpenevents.com/?ai1ec_event=douglas-preston-and-lincoln-child-via-skype-sign-the-obsidian-chamber&instance_id=2059

10/20, 7pm
Barnes & Noble (UES)
150 E 86th St.
New York, NY 10028
Both Doug and Linc will appear in person
http://stores.barnesandnoble.com/event/9780061808617-0