Delphi Group Books in Order

After a former NASA engineer is shot in London, clues in his final letter draw Delphi Group operative Zane Watson into an international investigation. A secret organization’s interest in CERN points toward an experiment that could open a dangerous doorway.

NASA detects a mysterious signal from the Amazon that resembles one previously received from Andromeda. Zane Watson leads specialists and soldiers into the Brazilian jungle, where an ancient mystery and a hostile secret group turn their expedition into a fight for survival.

An archaeologist disappears in Venice while investigating an ancient document, and a relic is stolen from the Vatican. Zane Watson follows the connected mysteries toward a secret order determined to uncover a gateway hidden deep beneath the earth.

Patrick wakes without his memory, imprisoned by people conducting experiments on him. Escaping with Danielle, another captive who cannot remember her past, he flees through Paris while a pursuing hit team threatens to prevent either of them from discovering the truth.

A biophysicist’s kidnapping in Tel Aviv sends Zane Watson along a trail across Europe to a remote Caribbean island. Stories of missing people and strange creatures surround the destination, where his investigation uncovers dangers rooted in closely guarded research.

An attack on Zane Watson’s home leads him to the torture and murder of an archaeologist in Jerusalem. Following the connection, he confronts an ancient order seeking a hidden underground chamber whose discovery could unleash a far greater threat.

Radar reveals an unexplained structure beneath an Antarctic research station, raising the possibility of an alien spacecraft. Zane Watson joins the investigating experts as a winter storm closes in, only to discover that the weather is the least of their dangers.

Zane Watson travels to Madagascar with archaeologist Silas Pierce and Russian defector Anya Sokolov to investigate a biblical treasure. Mercenaries, strange creatures and a figure from his past complicate their search for an object linked to an end-times legend.