Sacrifice...
"How can I trust you won't turn us over to Nyla? You have a good plan, and I agree it would take time, but I don't have that much time."
"You would have to swear allegiance to Nyla, or you would be annihilated." Sula's voice raised to portray her seriousness, "Nyla is capable of that. She has great power."
"That I do believe, but you mention she can tear my world apart. That I won't believe."
Sula fluttered her lashes, her eyes bulging as if all her description of Nyla was thrown down the drain. It's no use trying to confuse her. I have to convince her so I can live before I'm impaled by the menacing spears of the guards.
"I will gather intelligence and find a way to communicate it to you. Presently, I'm not the most desired Sister in the Dome. They watch me closely, but I will find my way to communicate with you."