I quite enjoyed this audiobook, but slightly less than other titles in this series. It's cleverly constructed and Weir certainly knows his qubits from his spooky action at a distance. The characters are nicely drawn and the whole thing is an ingenious little take on what quantum computing will mean for security in general - in this case, a Las Vegas casino. So, enjoyable, if a little overly technical in places. Beautifully read by Janina Gavankar.