Being ever the cautious one, I veer off towards the discarded paper once I see him enter the castle. I reason that the paper can probably give us some clues as to what to do next, other than a frontal assault.
"..."
"....."
"Bruh."
"Fine, let's get this over with. Tell me where I can find the treasure after I dispatch Tetaaritus and then go over there to call him over."
(Hmm, the writing on the note seems similar to the sleezy ads you see online these days. Oh, what the heck. How bad could it be? It's not like we could get catfished or anything...right?)
Humans and wizards are pretty cool, so let's go with that. Plus, there is nothing like wizard duels!