Starlog on Killswitch:
“Shepherd continues to improve with each installment. Readers who have been wanting a far more intense story will find themselves amply rewarded as Shepherd puts his remarkable heroine through her paces. As with the previous novels, there are shifts between a great many characters also vying for attention, but the writing here is tight and crackling and turns the entire trilogy into an excellent adventure, with the spotlight clearly on Cassandra.”