Trilogy title

Woohoo! I just finished the revisions on the NC paranormal romance, Putting Down Roots. It now joins Heaven Coming Down and Hell to Pay in the complete trilogy. 

It's exciting to finally be down a project that's taken ten years from the original sentence in the first book to the final sentence in the third. I had no idea I was starting a trilogy when the idea came to me.  And all because a cocky man I knew at the time said that he could solve all of the world's problems if he had the same time and resources as God.  

I need a name for the trilogy. The first is a quest to save the world, features gods and demons. The second is a challenge to save one man’s soul from the demon’s daughter and the third is about nymphs and humans curing cancer while falling in love. The central theme in all three books is man's interference with nature. All the characters from the first two appear in the final showdown with the evil nymph at the end of the third book. 

Do you have any ideas on what I can call the trilogy?

PS - I am doubly proud of myself for finishing it while still suffering from vertigo.  If something means enough to you, you will find a way