This time, Tybalt’s snarl was audible. “Do not speak of your sister in my presence,” he said.

I raised an eyebrow. “Interesting as it is to watch you try to needle my boyfriend, you sort of sound like a soap opera villain right now. ‘Gosh and golly, October, why don’t you stand there while I reveal a bunch of dirty secrets that stopped mattering centuries ago.’ His name is Tybalt now, as I’m sure you’re aware, and whatever may have happened with him and your sister happened in another time.”

Tybalt shot me a grateful look. Oh, he knew I’d ask him about it later—I didn’t go into detective work because I was content to let questions go unasked, or unanswered—but this was neither the time nor the place.

Simon contrived to look offended. “I merely thought—”

“Either you’re here to hurt me or you’re here to help me,” I said. Something about my tone seemed to get through; he fell silent and sank back a bit on the couch, watching me warily. “I have plenty of evidence that you’re here to hurt me. You put me in a stasis spell and you tried to transform one of my housemates into a fish, which, I don’t know if that’s your go-to spell or what, but you should know that that one really bothers me, so I’d avoid it if I were you. Just to be sure that I don’t accidentally hit you over the head with a lead pipe and bury you in a shallow grave in Muir Woods.”

“Queen Windermere probably wouldn’t mind too much,” said Quentin.

“I assure you, I am not here to hurt you,” said Simon gravely. “I acted in haste before. I did not expect . . . any of what happened in that kitchen, I swear. It was as much a surprise to me as it was to you.”

“Kinda doubt that, since you came to me, and that was the first surprise of the day,” I said, unable to keep a note of sour impatience from my tone. “It’s been a day just full of surprises.”

“I would agree,” said Simon. “You are much more your mother’s daughter than I had been led to believe.”

“No thanks to her,” I said.

Simon didn’t comment on that. I guess having his stepdaughter insult his wife wasn’t something he felt he needed to get involved in. Instead, he looked past me to Quentin, and said, “Since you are only known to keep company with two teenage boys, and this one lacks fangs, he must be your squire. Hello.” He shifted his position slightly, making it somehow clear that I was no longer the focus of his attention. “I understand you were originally fostered in Shadowed Hills, in the care of my brother. That must have been a great change for you.”

“Didn’t you used to date Oleander de Merelands?” asked Quentin. He sounded every inch the sullen teenage delinquent, his usual courtly—and yes, princely—graces abandoned. I could have hugged him in that moment. If Simon didn’t already know who he was, there was no need to give him reason to suspect.

As for Simon, he hesitated, stiffening, before finally nodding and saying, “I kept company with the lady you have named many times over the centuries. It was generally at the behest of our mutual . . . employer.” He choked on the final word, as if even saying that much was difficult for him. After a pause that lasted only a few seconds, he managed to continue, “Our relationship was perhaps more intimate than my lady wife would have preferred, but as Amandine and I were unavoidably separated at the time, she and I have never been forced to discuss the matter. I was very sorry to hear of Oleander’s death.”

“Oh?” asked Quentin. “Why, because she didn’t manage to take any of us with her?”

“No,” said Simon. “Because I wanted to kill her myself, and hadn’t had the opportunity to do so yet. You want me to be a villain: things are always easier when there’s a clear villain, and I can fill the role admirably. I have before, and I probably will again. Please don’t mistake villainy for evil. The two can exist side by side while remaining quite distinct. And Oleander, for all her good points—and she did have some, although they were regrettably few and far between—was evil.”

For a moment, we all just stared at him. Finally, I blurted, “Why didn’t Mom ever tell me about you?”

“I’m sure she had her reasons,” said Simon, looking away. “Your mother and I . . . we didn’t part cleanly. We both had our ideas of what needed to be done in order to resolve things we had left unresolved. Mine involved some choices she was not comfortable making. Hers involved, for me, too much safety and reliance on other people. She thought that just because she was Firstborn, the world would eventually realize she should get her way.”

“Sort of hard for the world to realize that when she didn’t tell anybody.”

Simon smiled slightly, the expression tinged with clear regret. “Amy has always been fond of secrets,” he admitted.

“Yeah, well, I’m pretty much done with secrets, so let me make myself perfectly clear,” I said. “Tybalt and Quentin are mine. So is your brother. So is my Fetch and her girlfriend, and anyone else you look at and think ‘gosh, Toby would be upset if I hurt this person.’ You follow? Because I won’t just be upset. I’ll be angry. And you’ll be sorry.”

“Is everything all right over here?” Mags’ voice broke in, and I turned almost guiltily to find her emerging from the stacks with the thickest book I’d ever seen clasped in her arms. Her wings were vibrating rapidly, sending sprays of pixie-sweat in all directions as she eyed the four of us. “Remember what I said about fighting in the Library.”

“No one’s fighting,” I said. “Some threatening, yes, and maybe a little glaring, but there’s been no fighting, I swear.”

“Count Torquill?” said Mags.

Simon rose. He moved stiffly, like his left leg didn’t bend right. “It’s quite all right, Miss Brooke. My stepdaughter and her friends were simply reminding me that I am not one of their favorite people, but as they did so in a calm and nonviolent manner, I can’t really take offense. I think I’m done with my research for today, however, so if you’ll excuse me, I’ll be going.”

“Wait!” The word escaped before I could prevent myself from speaking. Simon stopped in his tracks, turning to stare at me. Everyone else did something similar. Cheeks burning, I swallowed, and said, “Wait, please. I have to ask you something.”