The second Monster High book will be called The Ghoul Next Door, and it will come out on April 5, 2011.
The fourth Gone book, Plague, will come out on April 5, 2011. The cover is shown below.
The eighth House of Night book, Awakened, will come out on January 4th.
The second Dragons of Starlight book, Warrior, will come out on January 18th.
Found by Margaret Peterson Haddix
"You are one of the missing.
When Jonah and his best friend, Chip, start receiving threatening notes in the mail, they are plunged headfirst into a mystery. With the help of Jonah's sister Katherine, they discover that the notes may be connected to the shady circumstances surrounding Jonah's and Chip's adoptions. When they begin to investigate, they find a vast conspiracy that reaches from the far past to the distant future-one that will take them hurtling through time. They don't know who to trust, or which shadowy faction to believe. Can Jonah and Chip discover the secrets of their pasts before the conspiracy catches up to them?"