THE BRAND NEW HEART-POUNDING ACTION THRILLER FROM SUNDAY TIMES BESTSELLER & CREATOR OF #1 NETFLIX FILM INTERCEPTOR

'Undeniably addictive.' Financial Times

For 35 years, the United States and Russia each had their own superhero.

Three days ago, America's hero died.

Today will be bad.

In the face of an overwhelming attack, one young woman - unassuming and anonymous - might be America's only hope.

Her codename ... COBALT BLUE

READERS LOVE MATTHEW REILLY

'Action packed to the gills and fast-paced from start to finish.' (FIVE STARS)

'Heart-in-mouth excitement from beginning to end.' (FIVE STARS)

'Twists and turns all the way through.' (FIVE STARS)

'Immensely entertaining and satisfying... Breezed through it in a day!' (FIVE STARS)

'Matthew Reilly's books are fast-paced, enthralling action from start to finish.' (FIVE STARS)