The employees nod obediently, being far less equipped to survive an actual attack than Strange or Syrlya.

It's a quick gesture to cover them all in invisibility, and then Syrlya steps back and adjusts his sword back to a more ready position. "Give me a moment to make certain our path is clear."

With that, he disappears from sight. It's a few long seconds, before the door to the room opens partially and Syrlya speaks in a low voice. "Come quickly, and keep quiet."

They pretty much have one shot at this.