Callsign King (Book 3): Blackout

Jack Sigler, known by his callsign King, has faced extraordinary challenges in the past, thwarting the enigmatic schemes of the elusive organization known as 'Brainstorm.' This time, however, the stakes are higher than ever. With a looming threat that could plunge the world into chaos, Jack and his elite Chess Team must band together once more to prevent a catastrophic event known as Blackout.

As tensions rise and danger lurks at every corner, the team navigates through a web of deception and intrigue. They are pitted against a formidable enemy whose ambition knows no bounds, leaving Jack to question not only their strategy but also the very fabric of trust within the team. With time running out and the stakes escalating, the balance of power hangs in the balance, challenging them to rise to the occasion once again.