“I’m just taking Cordelia home,” Lucie said, blinking innocently. Bridget wandered off, muttering about finding certain people stuck in certain trees while sneaking out of certain windows. Lucie bent to whisper something in Xanthos’s ear before gesturing for Cordelia to join her in the carriage. “It’s all glamoured,” she explained, as the brougham rattled under the open gate and into the streets of London. “It would just upset the mundanes to see a carriage racing about with no driver.”

“So the horse knows where to take us?” Cordelia settled back against the upholstered bench seat. “But it’s not to Cornwall Gardens?”

Lucie shook her head. “Balios and Xanthos are special horses. And we’re going to Chiswick House.”

Cordelia stared. “Chiswick House? We’re going to see Grace and Tatiana? Oh, Lucie, I don’t know—”

Lucie held up a hand. “There could be a time—a short time—during which you may have to distract them. But it is not a social call. I am on a mission.”

Cordelia did not think Grace seemed the sort of person who could be easily distracted. “I shan’t,” she said firmly. “Not unless you tell me what this mission is.”

Lucie was silent a moment, her face small and pale in the shadows of the carriage. “You know I can see ghosts,” she said, and hesitated.

Cordelia blinked. It was the last thing she’d expected Lucie to say. Ghosts were something all Shadowhunters knew existed, and when ghosts wanted to be seen, most Nephilim could see them. But the Herondales had a special ability: Will, James, and Lucie could all see ghosts that didn’t want to be seen. “Yes, but what—?”

“A ghost told me—” Lucie broke off for a moment. “Jessamine told me there is a ghost at Chiswick House that might know about these daylight demons,” she said at last. “Daisy, I have to do something for Barbara and the others. I cannot just sit about passing out tinctures. If there is anything I can do to help, I must do it.”

“Of course—but why not tell your father or your mother? They would surely understand.”

“I do not wish to raise hopes that may come to nothing,” said Lucie. “Besides, they might feel they needed to tell some of the others, and I—I have been told that being sought out by ghosts is not an appealing trait in a young woman.”

Cordelia caught at Lucie’s hand with her own bandaged one. “Tell me who said that to you. I will kill them.”

Lucie sniffled and then laughed. “You needn’t kill anyone. Just come with me to Chiswick, and I will be perfectly satisfied.”

“We must bar the doors,” said James. “They don’t lock, and we can’t be interrupted.” He frowned. “Matthew, can you stand?”