Quicksilver by Dannika Dark — book slip

In the world of crime fighting, Raven Black has learned that formal affairs are a necessary evil.

When Keystone receives an invitation to a winter ball, Raven tries to make the best of it, knowing the most powerful elites in Cognito will be attending.

But the evening takes a dark turn when a guest hijacks the party with a violent display of dark power. As chaos ensues, Raven and her team must race against time to thwart a diabolical plan that threatens the very fabric of civilization.

Will Keystone find the strength to prevent the downfall of society, or will they be forced to bow to a new king to save their souls?