Shadow gem

The shadow gem holds the power of shadow. It has the most power of all. Dangerous power. Strong power. Unbeatable power. This gem was made by the ultimate ninjas master himself and goes in the middle of the amulet. He created it to keep Club Penguin safe, but its where it is now is a mystery. Many fake gems have been made for fake amulets, but none hold the power of shadow, which is sad, but good.