Nesta monitored him like a hawk, but kept silent as Elain took his hand, and out they went.

Cassian finished the muffin, licking his fingers. I could have sworn Nesta watched the entire thing with a sidelong glance. He grinned at her as if he knew it, too. “Ready for some flying, Nes?”

“Don’t call me that.”

The wrong thing to say, from the way Cassian’s eyes lit up.

I chose that moment to winnow to the skies above the House, chuckling as wind carried me through the world. Some sisterly payback, I supposed. For Nesta’s general attitude.

Mercifully, no one saw my slightly better crash landing on the veranda, and by the time Cassian’s dark figure appeared in the sky, Nesta’s hair bright as bronze in the morning sun, I’d brushed off the dirt and dust from my leathers.

My sister’s face was wind-flushed as Cassian gently set her down. Then she strode for the glass doors without a single look back.

“You’re welcome,” Cassian called after her, more than a bite to his voice. His hands clenched and slackened at his sides—as if he were trying to loosen the feel of her from his palms.

“Thank you,” I said to him, but Cassian didn’t bother saying farewell as he launched skyward and vanished into the clouds.

The library beneath the House was shadowed, quiet. The doors opened for us, the same way they’d opened when Rhys and I had first visited.

Nesta said nothing, only surveying every stack and alcove and dangling chandelier as I led her down to the level where Clotho had found those books. I showed her the small reading area where I’d been stationed, and gestured to the desk. “I know Cassian gets under your skin, but I’m curious, too. How do you know what to look for in regard to the wall?”

Nesta ran a finger over the ancient wood desk. “Because I just do.”

“How.”

“I don’t know how. Amren told me to just … see if the information clicks.” And perhaps that frightened her. Intrigued her, but frightened her. And she hadn’t told Cassian not out of spite, but because she didn’t wish to reveal that vulnerability. That lack of control.

I didn’t push. Even as I stared at her for a long moment. I didn’t know how—how to broach that subject, how to ask if she was all right, if I could help her. I had never been affectionate with her—I’d never held her. Kissed her cheek. I didn’t know where to begin.

So I just said, “Rhys gave me a layout of the stacks. I think there might be more on the Cauldron and wall a few levels down. You can wait here, or—”

“I’ll help you look.”

We followed the sloping path in silence, the rustle of paper and occasional whisper of a priestess’s robes along the stone floors the only sounds. I quietly explained to her who the priestesses were—why they were here. I explained that Rhys and I planned to offer sanctuary to any humans who could make it to Velaris.

She said nothing, quieter and quieter as we descended, that black pit on my right seeming to grow thicker the deeper we went.

But we reached a path of stacks that veered into the mountain in a long hall, faelights flickering into life within glass globes along the wall as we passed. Nesta scanned the shelves while we walked, and I read the titles—a bit more slowly, still needing a little time to process what was instinct for my sister.

“I didn’t know you couldn’t really read,” Nesta said as she paused before a nondescript section, noticing the way I silently sounded out the words of a title. “I didn’t know where you were in your lessons—when it all happened. I assumed you could read as easily as us.”

“Well, I couldn’t.”

“Why didn’t you ask us to teach you?”

I trailed a finger over the neat row of spines. “Because I doubted you would agree to help.”

Nesta stiffened like I’d hit her, coldness blooming in those eyes. She tugged a book from a shelf. “Amren said Rhysand taught you to read.”

My cheeks heated. “He did.” And there, deep beneath the world, with only darkness for company, I asked, “Why do you push everyone away but Elain?” Why have you always pushed me away?

Some emotion guttered in her eyes. Her throat bobbed. Nesta shut her eyes for a moment, breathing in sharply. “Because—”

The words stopped.

I felt it at the same moment she did.

The ripple and tremor. Like … like some piece of the world shifted, like some off-kilter chord had been plucked.

We turned toward the illuminated path that we’d just taken through the stacks, then to the dark far, far beyond.

The faelights along the ceiling began to sputter and die. One by one.

Closer and closer to us.

I only had an Illyrian knife at my side.

“What is that,” Nesta breathed.

“Run,” was all I said.

I didn’t give her the chance to object as I grabbed her by the elbow and sprinted into the stacks ahead. Faelights flickered to life as we passed—only to be devoured by the dark surging for us.

Slow—my sister was so damned slow with her dress, her general lack of exercising—

Rhys.

Nothing.

If the wards around the Prison were thick enough to keep out communication … Perhaps the same applied here.

A wall approached—with a hall before it. A second slope: left rising, right plunging down—

Darkness slithered down from above. But the inky gloom leading deeper … fresh and open.

I went right. “Faster,” I said to her. If we could lead whoever it was deep, perhaps we could cut back, right to the pit. I could winnow—

Winnow. I could winnow now—

I grabbed for Nesta’s arm.

Right as the darkness behind us paused, and two High Fae stepped out of it. Both male.

One dark-haired, one light. Both in gray jackets embroidered with bone-white thread.

I knew their coat of arms on the upper right shoulder. Knew their dead eyes.

Hybern. Hybern was here—

I didn’t move fast enough as one of them blew out a breath toward us.

As that blue faebane dust sprayed into my eyes, my mouth, and my magic died out.

Nesta’s gasp told me she felt something similar.

But it was on my sister that the two focused as I staggered back, tears streaming the dust from my eyes, spitting out the faebane. I gripped her arm, trying to winnow. Nothing.