Out of the Ether: The Amazing Story of Ethereum and the $55 Million Heist that Almost Destroyed It All tells the astonishing tale of the disappearance of $55 million worth of the cryptocurrency ether in June 2016. It also chronicles the creation of the Ethereum blockchain from the mind of inventor Vitalik Buterin to the ragtag group of people he assembled around him to build the second-largest crypto universe after Bitcoin.