Magical Herbs
Magical Herbs is a large book written by an "(unknown)" author found at the home of Grizelda the Hag that was used for the Halloween 2009 Quest. It used the graphic for the Book of Truth and was dyed green.
Text
"MOON GRASS
Of all seasonal plants, it is one of the most powerful. It grows around graveyards for a few days around Hallows Eve. When used on the corpse of a monster, one has a chance of harvesting corporeal residue. The stronger the creature it was harvested from, the more potent the residue will be. Four grams of residue suffice to make a corporeal essence. Those are a wonder as well. If you apply the essence on yourself you will temporarily be morphed into a random creature, based on the potency of the residue used to make your essence. The effects are amazing.
You can see things you couldn't perceive as a human, other creatures also leave you be, thinking you're one of them. But beware!! If you sustain damage or attack any other creature, the effects wear off! Just like moon grass, the corporeal essence can only be used so many times before it's used up so use it wisely!
So why do all this? For the Lingering Souls of course! As a monster if you roam in dungeons, you will run into red lights flickering. It is the lingering souls of the dead. Capture them with a soul harvester. Once full, use the flask at an alchemy table to turn it into crystallized essence. It will turn into one of three things:
BLUE CRYSTAL
Cures any disease or ailment. Very effective against morphing.
RED CRYSTAL
Used to make stable monster costumes.
YELLOW CRYSTAL
Used to summon a Harbinger. Not for the faint of heart!