Toz shuffled and weaved through the piles of grimoires he and the cats had lined up on the floor. Mindle, Scrael, and Asilean noticed what he was doing, and they followed his trajectory to see Nil locked on the grimoire in front of him. Nil was so focused on the grimoire that he was the only one who didn't notice Toz's movements.
The three cats looked on curiously as Toz went over and bent down next to Nil so that he could read the description on the grimoire.
After reading it once, Toz understood why Nil read it again, but he didn't understand Nil's entranced look.
However, as Toz read the description a couple of more times, he began to understand why Nil had gotten caught by it. It only seemed like a useless grimoire at first, but as he started to understand what the spell did and how it was supposed to work, Toz realized that it was what they were looking for in the back room. Probably.