Ravenclaw house: One of the four school houses in Hogwarts. Founded by Rowena Ravenclaw. The Ravenclaw symbol is an eagle. The resident ghost is the Grey Lady. Ravenclaw, Rowena: One of the four founders of Hogwarts. Ravenclaw house was named after her. Red Cap: Goblin-like creature found in places where bloodshed has occurred. They lie in wait to bludgeon the lost. Reducio: Shrinking charm. Reductor curse: Say Reducto to blast apart a solid object. Relashio: Spell to make someone let go of something. Remembrall: Magical glass ball, the size of a large marble, filled with white smoke. The smoke turns red to tell you that there is something you have forgotten to do. Reparo: Repairing charm. Rictusempra: Tickling spell. Riddickulus: Spell to make a Boggart take on another appearance. Riddle House: Deserted former home of Voldemort's father, in the village of Little Hangleton. Riddle, Tom Marvolo: The young Lord Voldemort, who attended Hogwarts. Ripper: Aunt Marge's dog. Ronon: Name of a centaur in the Forbidden Forest. Rosmerta, Madam: Publican of the Three Broomsticks pub in Hogsmeade. Harry Potter and all related indicia are trademarks of Warner Bros. © 2002 Warner Bros. All Rights Reserved. Harry Potter Publishing Rights © J.K.R.