Grease-stained Letter

Hey bub! It's me, Grizzie, from Undermine. Remember me? I'm writing this here letter to let you know I saw you swinging that weapon at them fools that tried to give you the gutter. It reminded me of the good ol' days when we were just little runts, and that time you saved me from that hobgoblin! Thanks to you, I trained hard and became a big-shot bruiser, and now I'm teaching other goblins how to smack. Come by later and let me teach you a thing or two about how to use that thing you're flailing around. Make sure you bring your coin purse!