The message inside 'the world's most mysterious medieval manuscript' has eluded cryptographers, mathematicians and linguists for over a century.
And for many, the so-called Voynich book is assumed to be a hoax.
But a new study, published in the journal Plos One, suggests the manuscript may, after all, hold a genuine message.
Scientists say they found linguistic patterns they believe to be meaningful words within the text.
Whether or not it really does have any meaningful information, though, is much debated by amateurs and professionals alike.
It was even investigated by a team of prominent code breakers during WWII who successfully cracked complex encrypted enemy messages, but they failed to find meaning in the text.
The book has been dated to the early 1400s, but it largely disappeared from public record until 1912 when an antique book dealer called Wilfrid Voynich bought it amongst a number of second-hand publications in Italy.
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