Robert E. Howard 
The Phoenix on the Sword (Illustrated) 

Though hailed as a hero when he first seized the throne of Aquilonia, Conan is now beset on all sides by scheming politicians plotting his demise! But the conspirators have chosen the wrong ally in Thoth-Amon, the slippery Stygian wizard. The high priest of Set nurses an enormous grudge and has mobilized infernal powers to execute his vengeance. The barbarian king will need more than a strong arm and a sturdy ax to face the horrors at his chamber door! The fan-favorite team of Timothy Truman, Tomás Giorello, and José Villarrubia faithfully adapt the classic Robert E. Howard adventure.