Thoreau quotes, title ideas…

I’m looking for a title for the sequel to Bright. The working title has been Bleak, but it’s not quite right. Maybe.

Because it bothers me I resorted to using Bright 2. Take that, book.

We’ve been looking at one words:

Dim
Dark
Faint
Reflecting
Worry
Unlit
Dusk

And then I came across a Thoreau quote, the inspiration of my publisher’s name:

Heaven is under our feet as well as over our heads.”
― Henry David Thoreau, Walden

And then I found:

“The cost of a thing is the amount of what I will call life which is required to be exchanged for it, immediately or in the long run.”
― Henry David Thoreau, Walden

So I decided that The Cost of a Thing was the title. But daughter disagrees.

Now I also need a series Title.

Estelle starts a farm?
Zombies attack in the Final Book?
Bright the Series?

Sigh.