The Second Life of Linus Hoppe by Anne-Laure Bondoux
From the book jacket...

The Second Life of Linus Hoppe concludes the thought-provoking and fast-paced futuristic adventure that began in The Destiny of Linus Hoppe."
Blue Noon by Scott Westerfeld
From the book jacket...
"The darklings will hunt once again
The secret hour when time freezes arrives every night at midnight in Bixby, Oklahoma. It's a dangerous time, when five teenagers are the only humans awake and dark

Until suddenly, the blue time comes... in the middle of the day.
The noise of school stops. Cheerleaders are frozen in midair, teachers brought to a standstill. Everything is the haunted blue color of the midnight hour.
The Midnighters can't understand what's happening, but as they scramble for answers, they discover that the walls between the secret hour and real time are crumbling. Soon the dark creatures will have a chance to feed after centuries of waiting, unless these five teenagers can find a way to stop them.
A desperate race against time, a mind-blowing mystery of paranormal logic, a tale of ancient evil and spine-chilling sacrifices: Blue Noon is the exhilarating third volume in the Midnighters series by acclaimed author Scott Westerfeld."
Lord of the Shadows by Darren Shan

“All must fall to the Lord of the Shadows,” Steve said softly. “This is my world now, Darren.”
Darren Shan is going home – and his world is going to hell. Old enemies await. Scores must be settled. Destiny looks certain to destroy him, and the world is doomed to fall to the Ruler of the Night…”
All of these books are currently available for checkout at the Imperial Beach Library... stop by and check 'em out!