Hermione: [after Hermione and Harry sink in the Devil's Snare, Ron is still panicking] He's not relaxing, is he?
Harry: Apparently not.
Hermione: I've gotta do something!
Harry: What?
Hermione: Oh, I remember reading something in herbology... um...
Ron: Hel-!
Hermione: Devil's Snare, Devil's Snare..."It's deadly fun, but will sulk in the sun!" That's it! Devil's Snare hates sunlight! Lumos Solem!
[she conjures a type of sunlight from her wand; Ron falls to the ground below]
Harry: Ron, you okay?
Ron: Yeah.
Harry: Okay.
Ron: [sigh] Lucky we didn't panic.
Harry: Lucky Hermione pays attention in herbology.