Count Zero

Count Zero is a 1986 novel by William Gibson that is the second book in the Sprawl trilogy. It is followed by Mona Lisa Overdrive.

Publisher's summary
''A corporate mercenary wakes in a reconstructed body, a beautiful woman by his side. Then Hosaka Corporation reactivates him, for a mission more dangerous than the one he’s recovering from: to get a defecting chief of R&D—and the biochip he's perfected—out intact. But this proves to be of supreme interest to certain other parties—some of whom aren’t remotely human...''