HP Riddles Corner -This isn't MAGIC, it's LOGIC #8 - Page 9

None of the above

Originally posted by: DalenaGilvatore

Opal's necklace that nearly killed Katie bell??

Or Vanishing Cabinets?

I can only think of these two things

I too think DG the answer will be the necklace.Lets see.

Originally posted by: Padfoot_Prongs

None of the above

It is in plain sight. Used by everyone.

Hmm...let me think...

Originally posted by: Padfoot_Prongs

None of the above

It is in plain sight. Used by everyone.

Originally posted by: DalenaGilvatore

In the muggle world?

everyone is wrong word. Every student of hogwarts uses its one version.

Quills (one used by Umbridge on Harry)

I can't think of any answer...Provide us some hint.

Originally posted by: Planck

I can't think of any answer...Provide us some hint.

Main char and secondary most fav characters bonded over it.

This specific version was only in one book