Building the box for others to think outside of.

Kagen Sound (formerly Schaefer) is a full-time artist known for his complex secret opening boxes.

His work has received grand prize and people's choice awards numerous times in the international NobYoshigahara puzzle design competition. He is acknowledged as a master craftsperson by the Karakuri Creation Group, the worlds only guild of secret box makers in Japan.

Kagen attended Colorado College and received a Bachelor of Arts in Mathematics with honors in 2000. He currently lives in Denver Colorado with his wife Megan. They changed their last name together in 2013 after they married. "Sound" is word used to describe a person as being "sound of character" and an object being "structurally sound", something that both Megan and Kagen identify with in the work they do.