Item Name: Lupin family necklace
Item type:mysterious green sparkling stone about the size of a dime, mounted in an equally unusual silver setting
How it was made: made by Nicolas Flammel when Khaat's mother was pregnant with Khaat
How you came into contact with it: (if you made it yourself put N/A) put on Khaat at birth by Remus Lupin who enchanted it so that it could not be removed except by himself.
Magical abilities: (must have good effects and bad i.e. the pros and cons of the item) necklace protects the wearer both from changing into a werewolf and from being killed by a werewolf. since Khaat has never been able to remove it, she does not know if she is a werewolf or not, but it also kept her from being harmed by her uncle when he was in werewolf state. It used to alert Remus if Khaat was in danger and allow her to call for him by clutching it in her right hand and calling for him. This also allowed him the ability to find her at will, whether Khaat wanted to be found or not. Once Remus died, Khaat felt she had no real reason for wearing it anymore except that it reminds her of him. She does not realize fully yet that it still protects her from being killed by a werewolf. the stone, however does not protect her from injury by one. The necklace does not have any sort of clasp or catch in the chain to allow Khaat to even try to remove it. The necklace's energies come from sunlight, in order to counteract the effects that are generated by the moonlight connection to a werewolf. this requires the user to spend at least an hour outside in natural light every 24 hours before it begins pulling on the wearer's own lifeforce for its energies. That's why Khaat's family has always strongly encouraged her to be outside as much as possible. Each day without sunlight diminishes the wearer's lifeforce by 10% of its total capacity, therefore making its use fatal in a maximum of 10 days without natural light.
Roleplay sample: (Please use the item in Harry potter context so we know it fits. Also how you came into contact with it and if you created it how so.)It had been a late meeting at Hogwarts about the alumni society. Khaat walked in the autumn darkness across the grounds towards the waiting carriage that would return her to where she parked her muggle car. She was preoccupied with the society's plans for a Halloween ball when she heard an odd noise in the woods. She left the path to step into the woods and didn't get far when she saw a silouette of a werewolf against the moonlight. It saw her and charged at her, when her green necklace shot a beam of bright green light towards the creature. It howled in surprise and anger, turned and dashed deeper into the woods.