The reluctance of people to admit they’ve been duped also worked to Holmes’ advantage. George Schultz’s grandson, Tyler, worked at Theranos and saw instantly that there was something deeply awry. He attempted to warn his grandfather, who preferred to destroy his relationship with his grandson rather than contemplate the possibility he had made a serious error in judgment.

In one of the more bizarre incidents of Carreyrou’s book, Schultz invited Tyler over to discuss the matter, and hid a team of attorneys in the house, who were waiting to spring out and cajole Tyler into signing an agreement to keep his mouth shut.

Theranos deployed the full coercive power of the law in order to keep its crimes quiet. Employee non-disclosure clauses were enforced to the letter. Anyone who threatened to blow the whistle was immediate- ly warned that they faced serious legal consequences. David Boies’ law firm, Boies Schiller Flexner, pressured doctors who had doubts about Theranos into staying away from the press, and a team of lawyers confronted Carreyrou with (phony) intimations of potential impending libel suits. Getting ex-employees to talk on the record, even those alarmed by the company’s actions, proved challenging for Carreyrou. (Carreyrou’s attempts to track down the sources and piece together the story comprise a particularly gripping part of Bad Blood.)