Devils Snare help
So I'm in year Six and trying to ind Harry in the field after the Burrow's fire. I can't seem to get passed the Devils snare. Typically I can use lumos, that is what is recomended, but no matter howany times I shot nothing happens. On any other level usually a single brick pops up to touch. Nothing here. I've been stuck for a day now and need help!!! Also, I can't go back to Hogwarts. I'm literally stuck on this level. Any help would be great!! Thnx