Although Toz and the cats dived into the descriptions and labels of the grimoire to try and understand the base of how they used mana, the descriptions were rarely more than a few sentences. And since the names of the spells were also quite simple, Toz and the cats didn't waste much time on each grimoire.
Toz and the cats mostly read each grimoire's description until they understood the spell and the spell's use and purpose. They would try and comprehend the workings of the spell's mana later, when they had more time and freedom. Toz and the cats were still trying to find at least one exceptional grimoire, after all.
The receptionist hadn't mentioned a time limit of any kind, but Toz doubted that the tent was open for business without stopping. Well, the receptionist did sleep on the job, so maybe it was open for business more than Toz thought. But in that case, it meant that there would be another customer before long, which would wake up the sleeping receptionist.
