The mountain in the sea
(Book)

"Following a mysterious murder on an island off the coast of Vietnam, a research team convenes to study an octopus community that seems to be developing its own language and culture. Humans, AIs, and animals are swept up in the machinations of governments and corporations in this near-future thriller about the nature of intelligence"--,Provided by publisher.

Rumors begin to spread of a species of hyperintelligent, dangerous octopus that may have developed its own language and culture. Marine biologist Dr. Ha Nguyen will do anything for the chance to study them. Tech tech corporation DIANIMA has sealed the remote Con Dao Archipelago, where the octopuses were discovered, off from the world. Dr. Nguyen joins DIANIMA's team on the islands: a battle-scarred security agent and the world's first android. There are vast fortunes to be made by whoever can take advantage of the octopuses' advancements-- and even as Dr. Nguyen struggles to communicate with the species, forces larger than DIANIMA close in to seize the octopuses for themselves. -- adapted from jacket