Book four of The Starman Saga.

"Starman David Foster to the Silverfire."

"The mantaship has entered the water; it's like swimming in India ink."

"There's something out here with us. It's moving under it's own power."

"Sensors place it sixteen miles away. It's a life form more than a quarter-mile long."

"It's coming this way! We're taking a recording and getting out of here!"

Danger Below!

Buoyed by their discovery of the abandoned base on the planet Nyx, David Foster and the Starmen have intensified their search for the mysterious Benefactors of humanity. Faced with the looming threat of the Xenobots, the Starmen are determined to make allies out of the ancient enemy of the malevolent alien cyborgs.

But elements within the Solar System have already made contact with Benefactors not from Earth. Promises of power and scientific discovery have driven former comrades to stake their own claim to the secrets concealed beneath the oceans of the Europa. And they refuse to let the Starmen get in their way!

This is the future. The way it used to be!