Nothing But The Truth

I have just the right serum in mind. It will deal with the truth in precisely the way the truth should be dealt with.$b$bFor this concoction I will need several Shadow Panther hearts from the Swamp. I also require the enchanted fungus off of the Mire Lord who resides there. I am sure one as able as you, $n, can persuade him to part with some.$b$bThe last item I'll need for the serum is the blood of a dreaming whelp, like the ones that live outside Itharius' cave in the swamp.$b$bNow, off you go!