Mitch meets the bomber’s father, Armando DiGiuseppe, and learns he is host to a dangerous viral information-demon known as an êkimmu.

Jocasta reveals her discovery that the mystery bomber is a former Air Force pilot • Archie takes a call from Dr. Frank Stanton • Mitch tells the team about Emperor Norton • They’ve never heard of him • Mitch is flummoxed, not for the last time • URIEL prepares for a trip to Pittsburg, California • Mitch has a truly disturbing encounter with an old man

After the San Francisco Examiner publishes the bomber’s demand letter, Archie and Marshall invite themselves into the editorial suite to run damage control.

Mitch and Roger poke around the Transamerica Pyramid to see what they can learn about the mysterious bomber.

URIEL meets its newest employee, Jocasta Menos • And gets hooked up to ARPANET • A mad bomber with potential ties to History B goes public • Roger investigates the bomber’s handiwork at the Transamerica Pyramid • Jocasta meets some local FBI agents • Archie and Marshall run damage control at the San Francisco Examiner • Mitch finds an unusual pair of dogs and an even-more unusual plaque