In their magic treehouse, Jack and Annie are again transported to King Arthur's realm, where invisible beings, giant ravens, and mistaken magic spells have a duke's castle in an uproar on Halloween night.

Eleven-year-old Gabriel, with the help of the young raven Paladin, which whom he has a magical bond, travels to the foreboding land of Aviopolis, where he must face challenges and unanswerable riddles to rescue his long-missing father.

"Chulyen, a trickster raven, loses his nose in an embarrassing incident, but vows to get it back. With the help of magic powers, Chulyen devises a caper to retrieve his missing nose, and learns an important lesson along the way."--Provided by publisher.

Elise carries a notebook full of tallies, each page marking a day spent at her new public school, each stroke of her pencil marking a word spoken. A word that can't be taken back. Five tally marks isn't so bad. Two is pretty good. But zero? Zero is perfect. Zero means no wrong answers called out in class, no secrets accidentally spilled, no conversations to agonize over at night when sleep is far away. But now months have passed, and Elise isn't sure...

The eleven-year-old son of the Ravenmaster at the Tower of London befriends a Jacobite rebel being held prisoner there.