Layla was familiar with the term, but she'd never really thought about the breakdown of the word. What was the point, when you could just go to a dictionary? So, she just sat there, trying to resist the temptation to just start pushing buttons.

Nope, not even a tap on the keyboard. Uh-uh. Not from this Slytherin. Well, maybe just one, on the 'L' key.

And now they were moving on. To another thing that Layla had never really thought about before. Muggle advances and their magical counterparts. And she had never really connected patronuses to the telephone. Hmm.

Anyway, she started thinking about this now. Really thinking about it. The concentration probably shone on her face. And after about four minutes, she thought she had it.