“Well, there are also prescribed methods for entering a room. Must you always be stealthy like the ninja?'Like the ninja,' he repeated, smirking. “I’m that good, huh?’Come to think of it, you never announce yourself. Just, poof, and "Oh, look, William’s here."'- Lily and William, Seers of Light”
“Because I’m an English ninja,” Tanith replied. “We’re just like regular ninjas, except we wear leather and flirt more.”
“I just Googled "Ninjas".It came back "Ninjas cannot be found."- Well played Ninjas... well played.”
“Translators are like ninjas. If you notice them, they’re no good.”
“I mean, we're ninjas.""Well maybe you're a ninja," I said"You're just a really loud, awkward ninja," Margo said, "but we are both ninjas.”
“Okay," Claire finally said. "I admit, he has significant ninja qualities.""Booyah. I will summon the ninja. Oh, and take a lunch break while we burgle.""You’re going too?""Am I not ninja enough? Are you saying that I lack ninja?”