Oceanus by Scott Overton

The Oceanus Crisis

A deadly blast of unknown energy strikes a jetliner over the Pacific Ocean.

Hostile aliens? Or a new and unthinkably powerful form of Earth life?

An ingenious troubleshooter, a reluctant psychic, a bionic xenobiologist, a brilliant engineer, and a blind psychologist will descend to the depths in a prototype submarine habitat, facing the most inhospitable environment on the planet to attempt a First Contact.

Before the nuclear nations of the world take matters into their own hands.

The critical question is: are they investigators? Ambassadors?

Or just bait.