How is Marta described in the novel, The Eagle’s Gift?

Marta is described as "a paragon of calm and silent purpose." Carlos cannot at first see her features in the dark but pictures her as beautiful. Her voice is haunting. In the bright kitchen, he sees that Marta is young, voluptuous, and round-faced. Although uneducated, Marta is a spellbinding talker. Don Juan Matus believes that she is "the finest example" of determination affecting a human being. She cares for the three formidable westerly sorcerers.