Dead Reef: Dark Tide (crimson tide series, #3)

Kate Morrison thought she ended the terror at Dead Reef.

She was wrong.

Six months later, the creatures have spread across the world's oceans — each one more deadly than the last. One manipulates machines. Another alters living tissue. And the largest has begun displaying something far more terrifying than hunger: intelligence. Ambition. Strategy.

Now aboard the Cassandra, a covert deep-sea operations ship, Kate leads a team of scientists and soldiers who can't agree on whether to study the c...