Talk:An Encrypted Manuscript

I'm not sure you actually need the Nekker blood. I'm fairly sure it wasn't in my inventory (I did check to see what I had, realised I was missing the blood, and tried to hand it in anyway, and it worked). I did have the Harpy Eggs AND the Rotfiend tongue though, so perhaps it just checks to see if 4/5 ingredients are there, but forgets that only two of them (egg/tongue) are interchangeable?