What should my next novel be?

Prey For Dawn - action thriller about a female professional killer who is also the last vampire on Earth an finds herself suddenly hunted by a group of religious zealots, a billionaire big game hunter and a mythological phoenix.

Faith of the Damned - Faith is a 22 year old girl who stalks the streets of Chicago with a magic sword and gun battling the forces of hell. The only problem is she's batshit crazy and in reality is just killing pimps and drug dealers.

The Walrus and the King - insight into the secret life of John Lennon, undercover MI-6 operative during his years in New York and his ongoing relationship with rival CIA operative Elvis Presley.

The Serial Killer's Wife - Will is a reformed serial killer, thanks to the help of his hypnotherapist wife, but when she is brutally murdered by the father of one of Will's past victims, the killer is unleashed with a new purpose. Revenge.

The Things I'm Leaving Behind - dark dramedy about a young man who's decided to kill himself, but before he does, he's going to go around and collect all the stuff he's lent out to his friends.

The Gemini Experiment - Jack and Kyle may have been born brothers as part of a government experiment in the 60's, but they couldn't be more different. Kyle has been using his ability to make all things die as a member of black ops for the CIA, but when h

Underwater 2: Underground - continuing adventures of Jana Zane, this time as a straight up horror story. Jana heads a support group for people who have attempted suicide. When the kids start drying in suspicious ways, no one pays much attention, but Jan