The signs as Voldemorts Horcruxes:
Tom Riddles Diary: Pisces, Libra
Marvolo Gaunts Ring: Taurus
Helga Hufflepuffs Goblet: Sagittarius, Virgo
Salazar Slytherins Locket: Scorpio, Aries
Rowena Ravenclaws Diadem: Cancer, Aquarius
Nagini: Capricorn, Gemini
Harry Potter: Leo