Bilqis? I just found a site that said:
A much asked question is "When is Book 5 coming out?" The official answer is : No-one knows yet. Latest reports say that Jean is still working on Book 5 (and Book 6 which should be released not long after Book 5). The delay is said to be because of new findings that she needed to research to incorporate them (Such as the Mammoth that was found perfectly preserved).
So at least we know she is still alive and working on it! I reckon she will incorporate the Ice Man as well. Hope so!
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Smile! Life is too short for bitching!
Fljotsdale