Excerpt from Bad Blood by John Carreyrou, plus links to reviews, author biography & more

The one thing Mosley wasn’t sure he completely understood was how the Theranos technology worked. When prospective investors came by, he took them to see Shaunak Roy, Theranos’s cofounder. Shaunak had a Ph.D. in chemical engineering. He and Elizabeth had worked together in Robertson’s research lab at Stanford.

Shaunak would prick his finger and milk a few drops of blood from it. Then he would transfer the blood to a white plastic cartridge the size of a credit card. The cartridge would slot into a rectangular box the size of a toaster. The box was called a reader. It extracted a data signal from the cartridge and beamed it wirelessly to a server that analyzed the data and beamed back a result. That was the gist of it.

When Shaunak demonstrated the system to investors, he pointed them to a computer screen that showed the blood flowing through the cartridge inside the reader. Mosley didn’t really grasp the physics or chemistries at play. But that wasn’t his role. He was the finance guy. As long as the system showed a result, he was happy. And it always did.

***

Elizabeth was back from Switzerland a few days later. She sauntered around with a smile on her face, more evidence that the trip had gone well, Mosley figured. Not that that was unusual. Elizabeth was often upbeat. She had an entrepreneur’s boundless optimism. She liked to use the term “extra-ordinary,” with “extra” written in italics and a hyphen for emphasis, to describe the Theranos mission in her emails to staff. It was a bit over the top, but she seemed sincere and Mosley knew that evangelizing was what successful startup founders did in Silicon Valley. You didn’t change the world by being cynical.

What was odd, though, was that the handful of colleagues who’d accompanied Elizabeth on the trip didn’t seem to share her enthusiasm. Some of them looked outright downcast.

Did someone’s puppy get run over? Mosley wondered half jokingly. He wandered downstairs, where most of the company’s sixty employees sat in clusters of cubicles, and looked for Shaunak. Surely Shaunak would know if there was any problem he hadn’t been told about.

At first, Shaunak professed not to know anything. But Mosley sensed he was holding back and kept pressing him. Shaunak gradually let down his guard and allowed that the Theranos 1.0, as Elizabeth had christened the blood-testing system, didn’t always work. It was kind of a crapshoot, actually, he said. Sometimes you could coax a result from it and sometimes you couldn’t.

This was news to Mosley. He thought the system was reliable. Didn’t it always seem to work when investors came to view it?

Well, there was a reason it always seemed to work, Shaunak said. The image on the computer screen showing the blood flowing through the cartridge and settling into the little wells was real. But you never knew whether you were going to get a result or not. So they’d recorded a result from one of the times it worked. It was that recorded result that was displayed at the end of each demo.

Mosley was stunned. He thought the results were extracted in real time from the blood inside the cartridge. That was certainly what the investors he brought by were led to believe. What Shaunak had just described sounded like a sham. It was OK to be optimistic and aspirational when you pitched investors, but there was a line not to cross. And this, in Mosley’s view, crossed it.

So, what exactly had happened with Novartis? Mosley couldn’t get a straight answer from anyone, but he now suspected some similar sleight of hand. And he was right. One of the two readers Elizabeth took to Switzerland had malfunctioned when they got there. The employees she brought with her had stayed up all night trying to get it to work. To mask the problem during the demo the next morning, Tim Kemp’s team in California had beamed over a fake result.

Excerpted from Bad Blood by John Carreyrou. Copyright © 2018 by John Carreyrou. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.