Cobalt Blue

For 35 years, the United States and Russia each had their own superhero. Three days ago, America's hero died. Today will be bad.

Cobalt Green is in the Army. Cobalt Red is a Chicago cop. Cobalt White protects New York City with Cobalt Purple. Cobalt Silver resides in Utah. Cobalt Gold watches over Las Vegas.
And Cobalt Black is a genius.

One more hero remains, anonymous and unknown. But in the face of an overwhelming attack, she will become America's last hope...