In Muse Warrior by Erin Shachory, Notebook 19 is the name of main character Eden DellaLuna's art journal. It's a gathering place for her sketches, ideas, journaling, and collages. For Erin, it's a collection of thoughts, research and inspiration for her Eden DellaLuna series.
An imposing figure in a black robe stood with arms crossed in the Sibyl’s torch-lit cave. A hood obscured his face as he guarded her hourglass with its swift, constant stream of sand. Somewhere in the darkness were the sounds of clanking chains and scuffling feet.
In the very center of the temple, a glass jar hung from the high ceiling on a thick chain.
In the amber firelight, my forearm gleamed with the Mark. It was so exquisite and refined with its gentle, looping lines, I almost forgot its true purpose. Beautiful as it was, the Mark was a reminder that Apollo had cursed me to be the Muse Warrior, the one who would use the Oracles to defeat the Sibyl and save Olympus. He had sacrificed me long before I was born. Apollo had marked me to die.
The Sibyl’s threat rang in my ears the rest of the school day, overpowering everything else. I didn’t hear Daria’s lunchtime chatter and couldn’t recall Nyx’s pettiness on the volleyball court. As I left practice to meet Bax at the front gate, the Sibyl’s words continued to torment me.
I will send everything you love to the Underworld!
Since the day Troy disappeared, I’d thought Pluto had kidnapped him and taken him to the Underworld like my mother. But it was the Sibyl who haunted my dreams, who said I was the only one who could release her.