Take deep breath, push chaos grape into throat, give l33tz4n the grape and coil (let her keep the coil), and go past the ward to get the book.

Try to hit the ward with the book from behind, or maybe analyze the back of the ward with the book.

If we can't analyze the back of the ward with the book, try going to the chasm and using the book there to maybe find some things. If nothing is found, return to l33tz4n, and not choke on the chaos grape.