Verre Détection

Glass Magic: Verre Détection (硝子魔法『』) is a Glass Magic spell.

Description
With an open grimoire, the user creates several panes of glass and spreads them around an area. Using reflected light between the panes, the user is able to search in multiple directions and over a wide area.

Trivia

 * Verre détection is French for "glass detection."