It's a fantasy role-playing game.

DM: You are Percival de Rolo, a human gunslinger . You are the member of the famous group of adventurers. Previously, He snaps his fingers and an imp appears on his shoulder. He introduces the imp as Vasa, their guide.
DM: "Vasa will guide you. Thankfully, the stronghold is near the torture pits, so there is general din and sound and agony to surround. So that might offer you some solace in being unheard. But be careful."
Player: Any advice would be welcome. We want what you want.
DM: "I know. Rest. Prepare. Enter where is easiest, always the path of least resistance. Get the jump, surprise and silence. When it's time to leave, I can help you travel mostly unseen, should you avoid some of the more piercing eyes of this domain."
Player: Would you know where to get a Silence spell, out of curiosity?
DM: "I can provide maybe one or two."
Player: One would be-- two would be even more helpful.
DM: "Very well. Rest. I'll be here waiting."
