The daedric text translates to:
THE TIME IS NOW
THE CURSE IS SPOKEN
ARISE DEMON AND BA NAMED VENGEANCE
Transcription from the second page:
The jacinth wakes the rising sun,
and snow blankets the grass.
But night o’ertakes the mid-day sky,
and the gate is opened last.
BAWARE
In Redguard, this book is part of a ritual that summons a portal to Clavicus Vile’s realm. In OAAB Grazelands, it teaches the player the “Lesser Soulsnare” spell if they have high enough intelligence.
Info
Source: OAAB Grazelands