Combining Two Novels Into One

[future_guardian]

Well, I have made a difficult decision concerning my Dream Trilogy novel.  Actually, once I got over the initial "Grrrrr" of starting over, it was the easiest decision I've ever made.  I have decided to combine my Dream Trilogy with my Leasher Trilogy.

Here's what I'm keeping from my Dream Trilogy:
-Callix Ruelo is the main character.
-Callix Ruelo is a cambion.
-Callix Ruelo is a quirky looking cambion.
-Callix Ruelo meets a man named Marius.
-Callix Ruelo is royalty of sorts off and on.
-Callix Ruelo has friends named Fiona, Jelena, and Desiree.
-Callix is a regenerative spirit.

Here's what I'm using from the worldbuilding for the Leasher Trilogy:
-Callix Dakatri is the main character.
-Callix uses the name Caprice Ruelo for slayer/leasher business.
-Callix Dakatri begins life as a demonic skeleton and is born as a cambion.
-Instead of developing independent thoughts and feelings at the age she died, Callix the cambion gets normal functions at age seven.
-Callix is illegal royalty, which causes problems with neighboring countries (but not so much her own).
-Callix also has friends named Laura, Axle, Jennifer, Zamantha, Jordana, Sadie...and so on.
-Callix starts her borrowed life genderless (in context it makes slightly more sense) and develops somewhat more feminine characteristics as she gets an official body.
-Callix's job as a supernatural creature leasher is more important than her job as a slayer.
-Callix eventually does get married (not necessarily by choice) to a man named Toriaun.
-The second novel, Downward Spiral, talks a lot about Callix's school years.
-Callix has two offspring (literally spawn because of her half demon background), tentatively named Divinity (thirteen) and Karma (three), and both girls are important to the third novel, Shades of Villainy.

The novel titles are as follows:
-Borrowed Life
-Downward Spiral
-Shades of Villainy

More information to come as other ideas are deleted or merged.