I believe it was Yesterday (scroll)

From Bestiary of the Hypogriph

I believe it was yesterday--
I opened my eyes, breathed the air,
And received the tidings of the sprites
Which ambulate across the universe --

โ€” High Priest Zalft Druleithien, in Sayings of the Mountain Priests, used to see through opaque objects a small radius around the spellcaster's location.