Apparently 6
24 books
so far there is two, but there will be more.
There is going to be 6 books total in the whole series.
I was actually just looking into that last night because I LOVE those books. Night Star, the fifth book in the series is coming out sometime in November, and the sixth and final book (the name hasn't been released to the public yet) is coming out next year. If you don't believe me you can look up Night Star on the Barnes and Noble website. It might be on the website for Borders too! Hope I helped!!
There are a total of 49 chapters - including the mysterious chapter 48 which is difficult to find but not impossible.
Three Twig, three Rook, three Quint, the Immortals and the lost barkscrolls. 11.
No the immortal series came before Riley's series because Riley was in the very first book in the immortal series called evermore and at the end of evermore Riley lingers in summerland for many months then crosses the bridge to the afterlife
There will be 6 books: Evermore, Blue Moon, Shadowland, Dark Flame, Night Star, and Everlasting. there is also another series about Ever's younger sister, Riley: Radiance, Shimmer. These are all of them so far, but there will not be anymore immortals books.
The Last of the Immortals has 384 pages.
The Immortals - novel - has 368 pages.
Immortals - anthology - has 258 pages.
The Immortals of Meluha by Amish Tripathi has 436 pages in the English edition.