A Teaser for Chapter Four

[robkelk]

Taken from the talk page on the wiki for this spell:

Here's what it says in the Bloomsbury edition, Chapter 31, page 529, lines 2 to 7: "He had soon mastered the Impediment Jinx, a spell to slow down and obstruct attackers, the Reductor curse, which would enable him to blast solid objects out of his way, and the Four-Point Spell, a useful discovery of Hermione's which would make his wand point due north, therefore enabling him to check whether he was going in the right direction within the maze."

It doesn't seem like the spell canonically does anything beyond pointing north to me.

Hermione's version doesn't ... but Hermione is still a novice at this, no matter how book-smart she is. Dumbledore has had decades of experience - and, in this universe, also has access to Doug and Septima's notes on building new spells.

Trust the author, folks. Bob knows what he's doing.
--
Rob Kelk
"Governments have no right to question the loyalty of those who oppose
them. Adversaries remain citizens of the same state, common subjects of
the same sovereign, servants of the same law."

- Michael Ignatieff, addressing Stanford University in 2012