get it in the temple in shark tooth to get it u need a decoder.
be hind the shark
you don't
nhkkffehkgkkkite
in the ancient ruins of shark tooth island
on top of the ancient ruins
you go to the guy who told you to get the stuff
In a cave past a caterpillar down a ditch.
The key ingredient is a green substance hidden in the underground ruins. It is used in making a sleeping potion, which you will feed to the giant shark. --- The other two ingredients are Coconut milk and a Creature Bone. You get free carbonated coconut milk from the stand when you arrive on Shark Tooth Island. The creature bone is in the same underground passages as the Key Ingredient. You will need to decipher the ancient writing to open the door under the ruins. Once you have the ingredients, the medicine man will mix them for you.
in the cave and you have to get the code to get in the room the has it and the code is on the top of the cave
rotton milk
open. that's the answer. OPEN.