characters
Settings and locations
Magical Creatures
Plot Events
Magical Objects
100

Harry's first friend at Hogwarts?

Ron Weasley 

100

The street where the Dursleys live

Privet Drive

100

The three-headed dog guarding the Sorcerer's Stone

Fluffy

100

The Hogwarts house Harry is sorted into

Gryffindor

100

The object that chooses its wizard

A wand 

200

The professor who teaches Potions in Harry's first year

Severus Snape

200

The secret wizarding village Harry visits in book 3

Hogsmeade

200

Hagrid's pet giant spider

Aragog

200

Ron and Harry miss the Hogwarts Express and choose this method of transportation

A flying car

200

The object Harry uses to see his parents in book 1

The Mirror of Erised

300

This character can transform into a large black dog

Sirius Black

300

The room where first-year students face the Devil's Snare

The chamber under the trapdoor

300

The creature that feeds on happy memories and makes Harry faint

Dementor

300

The reason Hermione blinds Ron and Harry with a bright spell in book 1

To escape Devil's Snare

300

The enchanted diary found by Ginny Weasley

Tom Riddle's diary 

400

The girl who becomes Petrified in Chamber of Secrets after seeing the Basilisk through a ghost

Hermione Granger

400

The shop where Harry buys his wand

Ollivanders

400

The creature living inside Tom Riddle's diary

A memory/fragment of Voldemort

400

The event that causes Harry to accidentally inflate Aunt Marge

Her insulting Harry's parents

400

The object Hermione uses to attend multiple classes at once 

A Time-Turner

500

The Gryffindor ghost who plays a major role in helping Harry decipher Voldemort's past in book 2

Nearly Headless Nick

500

The place where the Basilisk travels unseen through Hogwarts

The pipes/plumbing

500

This creature can only be seen by those who have witnessed death

Thestrals

500

The real identity of Scabbers the rat

Peter Pettigrew

500

The object Sirius sends Harry to help him sneak into Hogsmeade

The permission slip/ signed Hogsmeade form