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Griffin, a newborn bat, thinks he's nothing like his heroic father, until he gets dragged to the Underworld and must find his way home while his father braves the odds to get him back as well.

When a newborn bat named Shade but sometimes called "Runt" becomes separated from his colony during migration, he grows in ways that prepare him for even greater journeys.

Continues the adventures of Shade, a young bat, as he searches for his father and struggles to prevent the evil jungle bat Goth from wiping out the sun.

Dusk, the world's first bat, must lead his colony to safety in a time of changing species.

Matt, a young cabin boy aboard an airship, and Kate, a wealthy young girl traveling with her chaperone, team up to search for the existence of mysterious winged creatures reportedly living hundreds

When his grieving father orders the destruction of the Dark Library, Victor retrieves a book in which he finds the promise of not just communicating with the dead, but entering their realm, and soo

Seventeen-year-old Jessica, adopted and raised in Pennsylvania, learns that she is descended from a royal line of Romanian vampires and that she is betrothed to a vampire prince, who poses as a for

As seventeen-year-old Jill Jekel and classmate Tristen Hyde work together on a chemistry project, hoping to win a scholarship for her and a cure for his curse, they also uncover family secrets and

Eighteen-year-old vampire princess Jessica Packwood is in for the fight of her life--and her husband's--when Lucius is accused of a horrible crime and Jessica, trying to prove herself worthy of the