Nearby, in the center of the deck, the other three Cryptics were chatting with their heads together in a huddle.

“Do you think it strange,” Shallan asked, “that Cryptics would end up with the Lightweavers, the order of Radiants with the most artists? You, who cannot lie—and who are basically walking numerical equations?”

“We can lie,” Pattern said. “We are simply bad at it in general. It is not odd to end up with you. We like you in the way that a person likes new foods or new places. Besides, art is math.”

“No it’s not,” Shallan said, offended. “Art and math are basically opposites.”

“Mmm. No. All things are math. Art especially is math. You are math.”

“If so, I’m the type with a misplaced number hidden so deep in the equation, I can never find it—but always calculate out wrong.” She left Pattern then, strolling across the deck of the barge, passing several peakspren with molten light shining out through the cracks in their skin. High overhead, clouds had formed—the familiar ones of this place that pointed toward the distant sun like a roadway.

Those clouds didn’t seem to move according to ordinary weather patterns, but appeared and disappeared as the barge moved. Was it something to do with the angle at which they were being seen?

All right, Veil, she thought. What do we do?

There are several ways to uncover a spy, Veil thought. We’re in a fortunate position, since we know they communicated directly with Mraize recently—and will likely do so again. We also have three specific suspects, a manageable number.

We’re going to try two different methods of finding the spy. The first is to catch them in a lie or a past misdeed, then push them until they grow uncomfortable and admit to us more than they intended. Everyone has a guilty conscience about something.

“Radiant doesn’t,” Shallan noted.

Don’t be so sure, Veil replied. But if this method doesn’t work, we’ll try something else—something that takes longer, but is more likely to work. We will find a way to feed each suspect a different tidbit of false information: a tidbit they will in turn feed to Mraize. Depending on which piece of information is leaked, we’ll know who did the leaking, and identify our spy.

That’s quite clever, Radiant noted.

Well, it’s more standard than clever, Veil admitted. This is a time-tested method, and our biggest problem in using it is that I’m certain Mraize is aware of it. So we’re going to have to be very subtle—and it might not work, as it requires Mraize to not only be told this information, but to not be suspicious of it, and to relate it back to us.

Fortunately, we have a long trip ahead of us, and so if neither of these methods works, we can try something else. Point is, today, trying this will be good practice for Shallan.

“I don’t need practice,” she whispered. “I have you.”

But Veil was being stubborn, so Shallan wandered across the deck to where Ishnah was helping Ua’pam and Unativi—his cousin, who ran the barge—as they manifested goods.

This was how almost everything—from clothing to building supplies—was created in Shadesmar. Spren didn’t quarry stone or spin threads; they took the souls of objects from the physical world, then “manifested” them. The term referred to making the object’s bead on this side instead reflect its physical nature.

Ua’pam held up a bead, inspecting it. Shallan could sense the souls of things by touching beads, though Veil had more trouble, and Radiant couldn’t do it at all. Spren also varied in skill in this area, and true ability to manifest was somewhat rare.

Ua’pam pressed the bead against the deck, then held up a diamond chip—shining with Stormlight—in his other hand. He drew in the Light much as a Radiant would, breathing it into his lungs. She’d heard that this would invigorate spren, making them feel alert and awake—they could feed on Light, even if they didn’t need it to survive. Today, Ua’pam immediately used this Stormlight to manifest the bead.

The hand with the soul pressed against the deck began to glow, then something blossomed underneath it. He stood up as an ornate wooden table emerged beneath his hand, growing like a plant at a highly accelerated speed.

“So fine!” his cousin—Unativi—said, clapping his hands. It sounded like rocks striking one another. “We are lucky! A grand table.”

Ua’pam, shoulders slumping from exhaustion, nodded and dropped the drained sphere to the side for Ishnah to catch. Spren didn’t care much for the value of most gemstones; it was the Light that interested them. The bead that had been the table’s soul had vanished, replaced by the object. Interestingly, so far as Veil knew, the real table in the physical world would be unaffected by this process.

Shallan focused her attention on Ishnah, who was now trying to sketch the transformation process. Shallan had told the former thief to practice her art skills so she could better imitate lighteyed women.

“You are surprised by how nice this table is,” Ishnah said to Unativi. She reached out to touch the table. “You didn’t know what would be created before this moment?”

“No,” Unativi said. “Understand. I find furniture. I know it is furniture. But how nice?” The peakspren spread his hands in a display of ignorance.

“We must work more today,” Ua’pam explained. “Stormlight in gems runs out, but manifestations last long. Many months without reinfusion, if done by one with skill.” He slapped the table. “I have skill.”

“So you make as much cargo as you can,” Ishnah said, gesturing to the many chairs, tables, and other articles of furniture surrounding them, “before the Stormlight we gave you runs out. Then you can sell what you created.”

“Yes!” Unativi said. “Also, cousin will do the hard work. He is better.”

“You have skill,” Ua’pam said.

“You have more.” Unativi shook his head. “Skill I need. Instead you go chasing humans. Losing your mind. Going to fight?”

“Odium comes,” Ua’pam said, softly. “Odium will come here. We must fight.”

“We can run.”

“We cannot.”

The two stared at one another, and Shallan took some mental notes to add to her natural history. Too often humans—even some spren—regarded all spren as basically the same in personality and temperament. That was wrong. They might not be as fractured as the many nations of men, but they were not a monoculture.

Keep focused, Veil thought. The book you want to write is exciting, but we should make some progress on the spy today before getting distracted again.

Each of the three Lightweavers was suspicious in their own way, Beryl most so currently. That said, Ishnah had worked with actual thieves in the past, and she was the only agent who had come to Shallan instead of needing to be recruited. Ishnah had wiggled her way into being Shallan’s right-hand woman, and was the most skilled member of her Unseen Court.

The most damning fact was Ishnah’s previous fascination with the Ghostbloods. Thinking of her as a traitor made Shallan’s insides squirm, but she forced herself to confront the problem, Radiant cheering her on.

Shallan joined Ishnah as the two peakspren returned to their work. “You look overwhelmed,” Shallan noted to Ishnah. “Are you well?”