Harry Potter - connection answer link round 1

Below you are given 5 sets of 3 words each. Each of the three words has a connecting link.

The bonus link is something that connects all of the answers to the links above together.

Write your answers on the back of sheet 3.

  1. Creature - Norwegian, Hungarian, Swedish - LINK?

  2. Item - House, Rat, Portkey - LINK?

  3. Item - Peverel, Flamel, Goat - LINK?

  4. Place - Wands, Cauldron, Books - LINK?

  5. Item - Will, Lake, Hat - LINK?

What is the Link that connects all of the answers from above together?