A mysterious object in space. An archaeologist in search of answers. A cult hailing the end of the world. The Bridge awaits... Rex Walker always wanted to be like his father: a daring, adventurous man, traveling the world in pursuit of mysterious relics. Now Rex is the same age his father was when he disappeared without a trace. While teaching anthropology at a Boston college, Rex attempts to bury the past, until he discovers a hidden clue he can’t ignore. With the help of his sidekick Marcus, a former student turned protégé, he teams up with an alien-obsessed billionaire, and they search for the fabled Bridge. As an unidentified object nears Pluto, speculation surges. The Believers, a fanatical cult, hail it as the homecoming of a distant alien race. Will Rex solve the puzzle before it’s too late?

The Bridge was opened. The promised land is real. A seventh Token is needed. The Bridge has been triggered, but the surprises don’t end there. What Rex found on the other side was unsettling, and with fresh information, he must race against time with his new allies as they search for their salvation.

The Unknowns have arrived. The Believers have attuned. Hope is lost. Rex Walker has returned to Earth only to discover it under attack. Time has run out. With the assistance of his new allies, Rex and his friends race to prevent a widespread invasion. Not to mention save his sister and best friend Marcus from the ultimate sacrifice.