"What if someone was half demon? Would you sense it?" The question was blurted out before he could really think about anything except Magnus. Mentally he winced but better to know if someone would notice Magnus' heritage, just in case his boyfriend showed up.

"I'm Nephilim. A Shadowhunter. Usually only a few types of beings can sense magic or demon energy in my world."

A few months ago, Alec would have reacted the same way about vampires but Simon had changed that. "They're not common in my world, but we have treaties with them. If we all play nice... stealing one of their bikes wouldn't count as 'playing nice'."