In the middle of the night a famous astronomer disappears on the island of Molokai. The only clues are three icons on his computer.

So begins The 4th Icon, Harry R. Albers tale of murder, intrigue, and mystery. The design and construction of a next generation telescope that will unlock the secrets of the universe ... the dark matter ... dark energy ... the expansion of the universe ... is in doubt.

Alexandra Lancaster and Dusty McCrae resolve to find out what happened to Nathan Sterling, and risk their lives in the attempt. As the icons are deciphered, they lead to Ithaca, New York ... Frederick, Maryland ... Harpers Ferry, West Virginia ... and back a quarter century to an event that caused the disappearance.

Finally, back on Molokai, the tangled clues reveal an amazing story that began on the edge of a cliff overlooking a raging ocean, and decades later ended there.