There are a few problems with what you've suggested.
The first is that the absolute, if it s a deity level figure, would be directly banned from interfering with the mortal realm in this manner as outlined by the tablets of fate and commandments of Ao after the second sundering. The second is that mind flayers, as far as lore is concerned, would never take such a gamble. Historically they have always showed an extreme prejudice against anything that would allow any other race to learn more of their physiology and biology and have gone to extreme lengths such as purging entire colonies.