Mythworld by Russ Anderson, Jr.

As a child, Charlie Reese witnessed something incredible. Now as an architect and fresh out of college, he’s just gotten his firstbig break working for Harold Lightfoot, billionaire owner of the world’s fastest delivery service. But Harold has another identity, that of Hermes, the Messenger of the Olympian Gods. He wantsto bring back worship of the Olympians, and for that he needs Charlie’s help.

The premise of Mythworld and the beginning of the book will no doubt remind some readers of Neil...