Tassiter's Quickened Research

The caster touches a single text of any type (book, scroll, etc) and of any size up to 1,200 pages (or 500,000 words, whichever is longer). The caster immediately gains detailed knowledge of the text's contents, including names mentioned, complex details, plots, and all other information contained within. If a text contains images, it is considered to be equal to 1,000 words or 3 pages. The information processed in this way is remembered exactly as if the caster had read the text.

Once per day, this spell can be cast on the caster's spellbook to prepare extra spells equal to their Intelligence modifier (minimum of 1). This effect lasts until the dawn of the next day, at which point the extra prepared spells are forgotten.