I've had to readjust the total for the book, Hunted. There's a lot happening, but the first draft will not make the 100k mark.
When writing during Nano, I can only make a guesstimate of what the final total will be. The first book, Huntress was result of the first Nano I ever did, and came in at 117k because I wanted to write every day. My assumption being, the second book should be as large.
Well... it ain't gonna be that large. I'm happily writing toward solving the last mission which might take another 20k - or not; that's the thing about Nano and free writing. You never know where a books going to end.