Zooknock is the 10th squad mage who is involved in two quests. He can be found on Ape Atoll at the end of the Ape cave. He makes Enchanted bars with a M'amulet mould and monkey denture. He also makes Monkey greegrees with a Monkey talisman and the remains of a monkey (bones or corpse). Right click the bone and use it on him. Do the same with the talisman as he will not accept them in your inventory.
Gorilla monkey greegrees are made with gorilla bones and monkey talisman. Used to obtain the red banana.
Zombie monkey greegrees are made with monkey zombie bones and monkey talisman. Used to cook stuffed snake in the quest Recipe for Disaster, and to walk on lava.
Skeleton Ape bones cannot be made into a greegree.
Greegrees are considered hard to get, as the player needs to get to the end of a long, dangerous tunnel, with lots of level 100+s. There are also poisonous spike traps. This tunnel does contain monkeys that drop the bones needed for some of the greegrees.