¡°How about a nice book? said Ron innocently.
¡°An immensely complex spell,¡± he said squeakily, ¡°involving the magical concealment of a secret inside a single, living soul. The information is hidden inside the chosen person, or Secret-Keeper, and is henceforth impossible to find ¡ª unless, of course, the Secret-Keeper chooses to divulge it. As long as the Secret-Keeper refused to speak, You-Know-Who could search the village where Lily and James were staying for years and never find them, not even if he had his nose pressed against their sitting room window!¡±
¡°It's not funny, Ron,¡± said Hermione sharply. ¡°Honestly, I'm amazed Harry wasn't expelled.¡±