She closed her eyes and concentrated. Twilight had always been a quick study, able to replicate spells both by scroll and observation; while she prefered the book method, Rarity had been unable to write down how her gem-finding spell worked, casting it dozens of times instead. The two of them had spent an entire day working on it; Spike hid gems around the boutique and Twilight tried to find them. To his embarrassment, by the end of the day she’d even managed to find a sapphire in his belly that he’d eaten the night before while she’d been studying. She scolded him and he apologized, but she’d filed it away for later—it might be useful, one day, to have another spell that could help her find Spike.