Between Cynthia's and Donnie's efforts, only a few pages of the journal remained undeciphered.
The latter do, indeed, exist in the case of the Cretan civilization and in great numbers; but they are undeciphered and likely to remain so, except in the improbable event of the discovery of a long bi-lingual text, partly couched in some familiar script and language.
But the script itself is as yet undeciphered, though it is clear that certain words have changing suffixes, and that there were many compound words.