You get a hand on the book -- and immediately you find yourself somewhere else. You've stumbled into someone else's heart? You're free to look around in there if you like, but when you leave the library, you'll find yourself right back in this field.

(For anyone who's already been in Raven's heart, you won't remember having been there before, this is just a backdoor entrance. You can tag into it to snoop or just handwave a look around/leaving immediately as you like)