Marissa Meyer

When rogue packs of wolf-hybrid soldiers threaten the tenuous alliance between Earth and Luna, android Iko joins up with a handsome royal guard to hunt down the rogue leader.

"Princess Winter is admired by the Lunar people for her grace, kindness, and beauty--despite the scars that mar her face. She despises her stepmother, Queen Levana, who won't approve of Winter's feelings for Jacin, the handsome palace guard. Winter isn't as weak as Levana believes her to be: she's been undermining her stepmother's wishes for years. With cyborg mechanic Cinder and her allies, she might even have the power to launch a revolution....

When one of Serilda's outlandish tales draws the attention of the sinister Erlking and his undead hunters, she finds herself swept away into a grim world where ghouls and phantoms prowl the earth and hollow-eyed ravens track her every move. The king orders Serilda to complete the impossible task of spinning straw into gold, or be killed for telling falsehoods. In her desperation, Serilda unwittingly summons a mysterious boy to her aid. He agrees to...

"When the true intentions of the Erlking are revealed, which could forever alter the mortal realm, Serilda and Gild must foil the Erlking's evil agenda by solving the mystery of Gild's forgotten name in order to protect their unborn child"--