At one point, Yelena glanced up and said, “Ellis was a genius, but he had a warped way of thinking. Now I know where Owen Moon gets his crazy ideas. Owen must have read through these when he was a student at the Keep.” She tapped a page with her fingernail. “Ellis believed that only the very strong and master-level magicians should be able to keep their powers. He thought all the others were just a danger to themselves and others. He wanted to start a magicians’ guild to keep track of everyone.”

“That sounds like Bruns’s philosophy.” And Bruns was close to Owen’s age. “I wonder if Owen and Bruns knew each other before—” A thought popped into his head. While the Commander had financed most of Owen’s glass hothouses in order for the man to produce Curare, Owen would have needed funds prior to that endeavor. Money to pay for his failed effort to recover the Ice Moon from the Commander. Had Owen and Bruns been planning this takeover all along?

“Before?” Yelena prompted.

He explained his theory. “The Ice Moon would have accomplished their goal of limiting who has access to magic.” Once activated, the huge blue diamond could have stored the entire power blanket within its depths. But that would be too much power for one person to wield, so the Master Magicians sent the Ice Moon to the Commander for safekeeping. Believing it was a dangerous weapon, he had sliced it into thin sheets and incorporated them into the stained glass windows of his war room. Had he known what it had been capable of, the Commander might have been tempted to use it. He’d never trusted magicians and would have been happy to strip them of their powers.

Yelena fingered the edges of a book as her forehead crinkled in thought. “When the attempt to retrieve the Ice Moon failed, they came up with a plan B to control the magicians.”

“For now. The Theobroma is just a short-term solution. Eventually they will need to weed out the magicians who are not dedicated to their cause.”

“By killing them all?” she asked with a horrified tone.

“I doubt they would risk upsetting Sitians with such an extreme action. They need another way to neutralize them.”

“Like me?”

He considered. “If they had succeeded in blocking your magic, I’d think they would have used that substance on the other magicians by now. Perhaps they’re experimenting with null shields. They can be attached to objects. Maybe they found a way to inject a shield into a person’s body or bloodstream.”

Color leaked from her face. “Do you really think...?”

“I’ve no idea if it’s possible. But I’m pretty certain they’re working on something. Bruns and Owen want control of who keeps their powers and who doesn’t. Since the magicians are all in Sitia, the Cartel must be leading the efforts. Maybe the answer is in Ellis Moon’s notes.”

They kept working.

Yelena finished before Valek. “Is this everything you found?”

“Yes. Why?”

She pushed the file away. “It’s missing a few journals. Ellis mentions experimenting with various substances, but he keeps referring to a lab book for more details.”

“It might have been passed down through the family. Owen is Ellis’s great-great-grandson.”

“Or it could be shelved under a different topic.”

They searched through the rows and rows of bookshelves for the lab notes but found nothing. Then Yelena helped him look through the rest of the botany books that she had collected earlier. Nothing. And the last of the light was fading. He hefted half the stack to return to the shelves while Yelena grabbed the rest. They all belonged in the same section of the library. When he slid in the last volume, another book title caught his eye. Ixian Horticulture. The image of the trees in the castle flashed. Could it be?

He grabbed it and brought it to the brightest spot in the library. Yelena followed him and leaned over his shoulder as he flipped through the pages. Unlike all the other books, he recognized many of the plants and trees. Funny how he’d never known most of their names.

Valek paused at a drawing of a familiar circular leaf.

“The Cheeko tree,” Yelena said with a laugh. “The leaves are good for camouflage. Remember?”

“That is one of my favorite memories.” When they’d first met, he’d suspected she was intelligent, but when she had glued them onto her bright red uniform in order to blend in with the forest, it confirmed his assessment. Plus she’d looked adorable, even with mud on her face and her hair covered with leaves.

Valek continued to turn pages, scanning each one as the light dimmed.

“There!” Yelena stabbed a page with her finger.

Excitement pulsed as he spotted the Harman tree with its distinctive leaves. He read through the description, but it focused on planting the tree for shade and listed the ideal growing conditions.

“Why can’t anything be easy?” he asked.

“Were you hoping for a footnote that tells us why Owen is so interested in it?”

“Yes.”

She patted his shoulder. “At least we know it’s grown in Ixia. That’s more than a few minutes ago. And maybe there’s something here that my father will find useful.”

He gripped the page to rip it free from the book.

Yelena stopped his hand. “The library won’t like that.”

Since so many student magicians had spent long hours in here researching over many years’ time, magic had infused every inch of this place—the library was very protective of the books.