"I take a few breaths to calm myself, step back, and lift Buttercup by the scruff of the neck. "I should've drowned you when I had the chance." His ears flatten and he raises a paw. I hiss before he gets a chance, which seems to annoy him a little, since he considers hissing his own personal sound of contempt."

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You and Jace – you’re not quite normal, are you? I mean, not normal Shadowhunters. There’s something special about you both. Like the Seelie Queen said. You were experiments.” He smiled at her startled look. “I’m not stupid. I can put these things together. You with your rune powers, and Jace, well…no one could be that annoying without some kind of supernatural assistance.

— Cassandra Clare