The hood seemed to behave in the exact opposite manner as Harry's invisibility cloak. It revealed hidden things, living objects, even through walls, disillusions, and charms meant to hide things. It would have been a spy's best friend. Like the cloak, it could not be summoned, though, unlike the cloak, it acted as a physical shield. She allowed Yaxley to write up the entry for the Journal since she had no intention of allowing him to report anything to the Ministry.