There is a complete double take from the passing alien. And then there's more. You are drawing attention rapidly - something which does not seem to bother the assassin. 

"Oh, clever answer!" said the assassin, performing that enthusiastic high-speed clap again. "Context games, interrogational reversal. Your society hasn't finished growing, then! Well, perhaps we can help with that - and I can skip a few steps in my own task. As children of the Crimson God you have yet to be," it says a strange word that doesn't translate at all. The closest the spell gets is 'devoured'. "So you can do things we can't. My name is Boldness, and I represent the Saoshyant, who has marked the Furnace Knight for death -"

Onlookers within earshot flinch, and then bolt. Suddenly the space around the two of you is abruptly empty and the facility more distantly seems to be falling into a panic.

"- and were you to murder him on our behalf his gratitude would be known across the Endless Azure Skies!"

In the distance an alarm klaxon begins to sound. Lines of heavily armed and armoured soldiers are forming up at distant checkpoints. Boldness, for its part, couldn't seem less bothered by all of this.