Wizard Wednesday: Grandmother Um

From this...

Grandmother Um scares children and insults adults. But there exists a mystery about her that attracts rumor and gossip. Is she needlessly rude because she is horrible, or has the world committed some injustice upon her? Much speculation exists as to what exactly goes on in her hut in the woods. The woods are very dangerous, filled with wolves and fouler things, but she always makes the journey to town safely.

Grandmother Um is much fiercer then the beasts in the forest; she is firecer then any beast in the world. In truth she is a demon, disguised by a set of magical clothing. The more she wears, the more man shaped she appears. As she discards them she reveals her true form, a sea of hair and eyes and limbs.

... to this.

Each of Grandmother Um's clothes grants her a magic power.
Each piece she removes restores part of her demonic form.

Her brass rimmed Glasses

While wearing her glasses, Grandmother Um can see through lies.

Grandmother Um takes off her glasses 'to see you better deary.' Her body bursts into eyes, opening across her flesh like wounds. She can see through darkness, and can no longer be surprised.

Her delicate silk Gloves

While wearing her gloves, Grandmother Um's touch rots wood and rusts metal.
Grandmother Um will take off her gloves 'because my nails itch.' Her hands and feet grow into claws, long and terrible. They cut like swords, and she attacks with both every turn.

Her great fur Coat

While wearing her coat, Grandmother Um doesn't make a sound.
Grandmother Um takes of her coat since 'it's much too heavy.' Free from it's weight, she stands up straight, a full eight feet, and is overgrown by hair. Her hands gain reach like a spear and her hide becomes tough as leather.

Her red checkered Headscarf

While wearing her headscarf, Grandmother Um can change her voice to whatever she pleases.

Grandmother Um will take off her headscarf because 'it hurts my jaw.' Her head becomes a crocodile snout, her throat lined with backwards facing teeth. If she catches your arm she won't let go; you remain grappled, and your friends have a 50% chance of hitting you instead of her. Ripping your hand out leaves it as so many ribbons of flesh, ruined forever.

That mouth? It belongs to a TURTLE. A bloody freaking turtle.

Adventure Hooks

1. The PCs find one of Grandmother Um's pieces of clothing. She wants it back, and soon she will find them.
2. Grandmother Um hides in a cave. She asks the PCs to find and return her clothing; she enjoys her life in the village. If they do, she promises to serve them for a day, whichever day they want.
3. The PCs must defeat a monster that far exceeds them in power. If they could trick it into wearing Grandmother Um's clothing, it would become a simple human. The trick is getting Um to part with her clothing.
4. The PCs find Grandmother Um sitting in the Goblin Market. She offers to sell you her clothes, extolling the virtues of each. A freely agreed upon sale is the only way she can remove them. Afterwards she will be very grateful to the PCs, and won't harm them, or indeed anyone at the market. The next day her trail of destruction and devastation will be clear and easily followed.
5. Grandmother Um's clothing is scattered through the dungeon. She has cast it off, for the wearer is cursed to obey the words of the wizard Zaibon. Help her kill him and she'll teach the PCs how to remove it. But first she'll mock them for being fool enough to put it on. If anyone mentions that she wore them first, the offer is retracted.
6. The PCs befriend a monster. It tells you that Grandmother Um makes magic clothes which can hide it's form and let it walk as a man.

Edit: It seems I am really bad at knowing what a Wednesday is.