After a few minutes, though, I hear a strange sound. Like a roar through a mouth with a hand held over it.

Novius looks at me now, fury etched into every crag of his face. I realize that it is he who has made the sound. That he has broken free, at least a little bit, from the jinn’s control.

Quite suddenly, he drives his horse into mine. If I could, I would cry out. My mount stumbles, throwing its head back in agitation, lifting its front legs. I grab for the pommel, but it slips out of my fingers. My back meets the desert floor with such force that I nearly bite through my tongue.

The Mask might hate being controlled, but he’s a Martial, through and through. I glare at him and he meets my gaze with that same barely quelled rage. He dismounts, grabs me by my bound arms, and shoves me toward my horse.

In the distance, the jinn wheels her steed around and gallops back toward us.

“What is this?” Her beast whinnies in complaint as she yanks him to a halt. “What happened?” She looks at me. “Speak, girl! And you will not deceive me.”

“I—I fell off my horse.”

“Why did you fall off your horse? Was it on purpose? A distraction? Tell the truth!”

“Not on purpose,” I say honestly. “I lost my balance.” Unwillingly, I glance over at the Mask. The jinn narrows her eyes.

“Did Novius speak to you? Are you two planning something?”

“No,” I say, thanking the skies that the Mask’s muffled bellow could hardly be called speech.

The jinn observes me for long moments before turning away. Novius helps me back onto my horse, and the jinn rides ahead again, remaining close enough that I cannot write a message to Novius.

But far enough that I can hide the scroll he slipped me into my sleeve.

«««

I do not get a chance to read the scroll that night—the jinn watches too closely. The next morning, a powerful, dry gale churns up a dust storm. The jinn urges the horses onward, until visibility is so poor that they groan and snort. She forces them toward an outcropping of rock, where we settle down to wait. An hour later, with the sun a rusty disk overhead, the sandstorm has not abated.

The jinn appears wan, almost sickly as she crouches beside a boulder. The rest of the soldiers stand beside their horses, unnaturally still, like Mariner windup dolls frozen in place.

As the wind blasts us, the jinn’s blazing eyes remain fixed on me. I distract myself by thinking of the last time I traveled this desert. Izzi was still alive. It’s been so long since I thought about my friend—her gentle manner and quiet rebellion. The way she loved Cook like a mother. She was another sister, even if not by blood.

I miss her.

“Girl.” The jinn woman’s voice brings me back to my predicament. “You’ve walked these lands before. How long do these storms last? Speak.”

“A few hours at most.” My voice is a croak. “We’ll need to clean the horses’ eyes before setting off again. Or they’ll go sand-blind.”

The jinn nods, but does not silence me again. Perhaps she is too tired from so many days of using her power on us. Or perhaps, as Novius suggested, she is at her weakest.

To my relief, she stops staring at me and rises to walk among the soldiers. So slowly I am hardly moving, I reach for the scroll. Then I bend my head into my knees, as if shielding my eyes.

I dare not give myself more light, so it takes me a minute to read the cramped writing. And once I’ve read it, I am baffled. I’d expected instructions on how to get the Mask’s lock picks. The outlines of a plan to break free.

But of course, he couldn’t give me that. The jinn ordered him not to help me. Still—this makes no sense.

No blade forged by human or efrit, wight or ghul or wraith, nor any object of this world may kill us. No matter how badly you want us to die, we cannot.

What do the words mean? Why would he—

The memory comes rushing back so quickly that I am dizzy from it. She spoke these words to me before—and ordered me to forget them. But the Mask was listening too, and she gave him no such order.

The jinn is still among the soldiers, so I read the scroll one more time to commit the words to memory, and then let the wind carry it away. The second part of what she said is a lie. Jinn can be killed. I saw it with my own eyes.

The Nightbringer killed Shaeva with a blade. And she was at least as old as the jinn locked in the grove. Perhaps older.

I close my eyes and try to remember what the blade was. A black sicklethat glittered like diamond, wickedly curved and attached to a short hilt. It was a strange metal—one I hadn’t seen before.