Slytherin House.
Symbol: Serpent
Colours Green and Silver
Element: Water
Relic: Slytherin’s Locket
Common Room: Behind a wall in the school dungeons.
Positive Defining Traits: Determination, cunning, resourcefullness, thinking before acting.
Negative Defining Traits: Selfishness, blood-purity discrimination.
Founder: Salazar Slytherin
Head: Severus Snape [19?? - 1997], Horace Slughorn [192? - 1981, 1997 - present]
Ghost: The Bloody Baron
Notable Members: Tom Marvolo Riddle, Most of the Black family.
(via x--moved-blog)