Vampires of the Tower Series by Cody Young

I’m seventeen and he’s twenty-one. That’s okay… isn’t it? He drives a Lamborghini. So what? He was born in 1462. Uh-oh. He seeks revenge, but there is one person standing in his way. Me. On a high school trip to London, Madison Lambourne meets seductive stranger Johnny De Vere, who believes he knows her already, and is torn between love and revenge... moreI’m seventeen and he’s twenty-one. That’s okay… isn’t it? He drives a Lamborghini. So what? He was born in 1462. Uh-oh. He seeks revenge, but there is one person standing in his way. Me. On a high school trip to London, Madison Lambourne meets seductive stranger Johnny De Vere, who believes he knows her already, and is torn between love and revenge. Eager to learn more about this beautiful, lonely young man, Madison agrees to go with him to a re-enactment at the Tower of London. Dressed as a highborn medieval lady in a black velvet gown, she accidentally slips through a doorway that leads to the past. Knowing she will not last long on the streets of medieval London, Johnny must follow her… with devastating consequences for them both. A wild time-travel adventure full of love, lies, mystery and betrayal. less

Meet Johnny and the Vampires of Versailles. In this fast-paced time-travel adventure, Madison Lambourne goes back to 1789 and sees the outbreak of the French Revolution. She’s on a mission to help Johnny protect the River of Time. She knows she’s in love and she knows she can do this. But what she doesn't know is that she and Johnny have been framed. Can they unravel the mystery before it's too late?