The enemy within... When the Tok'ra ask SG-1 to save a tortured creature from the clutches of Apophis, how can they refuse? But the Mujina is no ordinary being - devoid of face or form, it draws its identity from those around it. All things to all people, it is a creature with terrible potential - for both good and evil. Their pursuit of the Mujina takes the team to a nightmarish world where human wickedness is at its worst - and there, the...