And what did she decide to do after she unhappily, and unsoberly, half-staggered her way back home? Why, she sat down at the card-table and pulled open 'De Magia Unicornis' to wrack what few brain cells were left still functional in order to try to figure out -- yet again -- how the batpony 'Balladeer of Ghosts' had managed his trick at the sand pit. It was like trying to cram for an exam at the literal last minute, but Lily didn't have anything better to do. Besides, she’d probably run into Ignacio on tomorrow night's planned expedition. And she didn't like the idea of showing up empty-hoofed, with no answer to his puzzle. So, 'De Magia Unicornis' it was.