Stealth is the final beast Tom has to fight in series four ( The Amulet of Avantia ).The last piece of the Amulet is hanging from his collar.
Stealth looked exactly like a normal panther. The only difference is that his has three tails and jade green eyes. She also has sharp claws.
Her power is when she claws at anyone the person becomes evil. She can change to ghostly form which, different from other ghost beasts, will become transparent not translucent and cannot passes directly through things. She can also curl up things using her tails and bring to her mouth for her to eat.