I did hear that she has finished all the research needed and is writing books 6 & 7 together. Horray.

For anyone who wants to read Jean Auel's cavemen books (accurate with archaeology findings etc.)

The series start with :-

:Clan of the Cave Bear
:Valley of the Horses
:Mamoth Hunters
:Plains of Passage
13 year wait
:Shelters of Stone
:Book 6 - Title unknown, no released Date.
:Book 7 - Title unknown, no released Date.