Books in the Dance in the Vampire Bund: Age series

"RESCUE MISSION. Yuuhi and the rest of the Beowolf trainees have successfully infiltrated a military-controlled prison compound in Inner Mongolia on a mission to free Queen Mina and her bodyguard Akira. But when our young rescuers discover Akira's childhood friend Yuki and Mina's doppelganger Katie Morris are also being held captive along with scores of human prisoners, their simple rescue mission becomes a whole lot bigger than they ever imagined. And with 30,000 vampires and two terrifying were-beasts standing between our heroes and freedom, it's a mission that could go pear-shaped any moment."--Back cover.