She’d learned so much in the last year. She’d almost started to feel she could deduce it all—answer the questions pertaining to time and to creation itself.

Then she remembered Soulcasters. Their armies ate and remained mobile because of Soulcasters. Urithiru depended on extra food from Soulcasters. The Soulcaster cache discovered in Aimia earlier in the year had brought an incredible boon to the coalition armies. They were among the most coveted, important devices in modern history.

And she didn’t know how they worked.

Navani sighed, snapping her notebook shut. Her little room trembled as she did so, and she frowned, leaning to the side and opening a small hatch in the wall. She looked out through the glass at an incongruous sight— a group of people flying in the air alongside her. The Windrunners held a loose formation, facing into the wind—which Navani had pointed out was a little ridiculous. Why not fly the other way? You didn’t need to see where you were going.

They’d claimed that flying feet-first felt silly, and had refused, no matter how much sense it made. They did seem to sculpt the air around themselves and prevent their faces from being buffeted by the worst of the winds. Dalinar, however, had no such protection. He flew in the line—kept aloft by a Windrunner—and wore a face mask with goggles to keep his proud nose from freezing right off.

Navani opted for a more comfortable conveyance. Her “room” was a person-size wooden sphere with long tapering points at either end to help with airflow. The simple vehicle was infused by a Windrunner, then Lashed into the sky. This way, Navani could ride in comfort and get some studying done during extended travel.

Dalinar claimed that he liked the feeling of the wind in his face, but Navani suspected that he found her vehicle too close to an airborne version of a palanquin. A woman’s vehicle. One might assume that—in deciding to learn how to read—Dalinar would no longer worry about what was traditionally considered masculine or feminine. But the male ego could be as complicated as the most intricate fabrial.

She smiled at his mask and three layers of coats. Nearby, lithe scouts in blue flitted one way or another. Dalinar looked like a chull that had found itself among a flock of skyeels and was doing its best to pretend to fit in.

She loved that chull. Loved his stubbornness, the concern he took for every decision. The way he thought with intense passion. You never got half of Dalinar Kholin. When he put his mind to something, you got the whole man—and had to simply pray to the Almighty that you could handle him.

She checked her clock. A trip like this, all the way from Alethkar to the Shattered Plains, still took close to six hours—and that was with a triple Lashing, using Dalinar’s power to provide Stormlight.

Thankfully, they were nearing the end, and she saw the Shattered Plains approaching ahead. Her engineers had been busy; over the last year they’d constructed sturdy permanent bridges connecting many of the relevant plateaus. They desperately needed to be able to farm this region to supply Urithiru—and that meant dealing with Ialai Sadeas and her rebels. Hopefully Navani would soon hear good news from the Lightweavers and their mission to—

Navani cocked her head, noticing something odd. The wall beside her reflected a faint shade of red, blinking on and off. Like the light of a spanreed.

Her immediate thought was panic. Had she somehow activated the strange fabrial? If the powers of the Windrunners vanished, she’d drop from the air like a stone. Her heart leapt, and her breath caught.

She didn’t start plummeting. And … the light wasn’t coming from the strange fabrial. She leaned back, then peeked under her table. There, stuck to the bottom with some wax, was a tiny ruby. No, half a ruby. Part of a spanreed, she thought, picking it free with her fingernail.

She held it up between her fingers and studied the steady pulsing light. Yes, this was a spanreed ruby—when inserted into a spanreed, it would connect her to someone with the other half, allowing them to communicate. It had clearly been stuck here for her to find. But who would do it so sneakily?

The Windrunners began lowering her vehicle down near the center of the Shattered Plains, and she found herself increasingly excited by the blinking light. A spanreed wouldn’t work if she was in a moving vehicle, but as they landed, she dug one of her own reeds from her supplies. She had the new ruby affixed and a piece of paper in place before anyone had time to check on her.

She turned the ruby, eager to see what the unknown figure wanted to say to her.

You must stop what you are doing, the pen wrote out, using a cramped, nearly illegible version of the Alethi women’s script. Immediately. It waited for a response.

What a strange message. Navani turned the ruby and wrote her response, which would be copied for whoever had the other side of the ruby. I’m not sure what you mean, she wrote. Who are you? I don’t believe I’m doing anything that needs to be halted. Perhaps you don’t know the identity of the person you are writing to. Has this spanreed been misplaced?

Navani set the spanreed into position for a response, then turned the ruby. When she removed her hand, the pen remained in position on the paper, upright. Then it started moving on its own, worked by the unseen person on the other end.

I know who you are, it wrote. You are the monster Navani Kholin. You have caused more pain than any living person.

She cocked her head. What on Roshar?

I couldn’t watch any longer, the pen continued. I had to stop you.

Was it a madwoman who wrote with the other reed? The ruby started blinking, indicating they wanted a response.

All right, Navani wrote. Why don’t you tell me what it is you want me to stop? Also, you have neglected to give me your name.

The response came quickly, written as if by a fervent hand.

You capture spren. You imprison them. Hundreds of them. You must stop. Stop, or there will be consequences.

Spren? Fabrials? This woman couldn’t seriously be concerned about such a simple thing, could she? What was next? Complaining about chulls that pull carts?

I have spoken with intelligent spren, Navani wrote, such as those bonded to the Radiants. They agree that the spren we use for our fabrials are not people, but are as unthinking as animals. They may not like the idea of what we do, but they don’t think it monstrous. Even the honorspren accept it.

The honorspren cannot be trusted, the pen wrote. Not anymore. You must stop creating this new kind of fabrial. I will make you stop. This is your warning.

The pen halted, and try though she might, Navani couldn’t get any further responses from the mysterious woman or ardent who had written to her.

* * *

The Windrunners at Urithiru had been called to one of the battlefronts for air support, and Kaladin was still busy with his little enterprise in Alethkar. So in the end, Shallan and her team had to travel to Narak the hard way. Fortunately, the “hard way” wasn’t too bad these days. With permanent bridges and a direct path maintained by soldiers, a journey that had once taken days had been reduced to a few hours.

At the first main fortified plateau where Dalinar kept standing troops to watch the warcamps, Shallan and Adolin were able to deliver up the prisoners—with instructions for them to be brought to Narak for questioning. Adolin and Shallan requisitioned a carriage, and left the rest of the troops to make their way back more slowly.

Shallan passed the time looking out the carriage window, listening to the clopping of the horses and watching the fractured landscape of plateaus and chasms. Once this had all been so difficult to traverse. Now she did it in a plush carriage, and considered that inconvenient compared to being flown about by a Windrunner. How would it be once Navani got her flying devices working efficiently? Would flying by Windrunner be the inconvenience then?