Twilight Sparkle never felt so justified in an expenditure as she did right that moment. The shower she'd gotten installed in her home might not have been up to library regulations, but the glorious flow of hot water pouring down her flanks forced the filly to finally realize how badly she needed to relax. Since the magical incident last week, the purple unicorn'd researched nonstop in a variety of awkward positions, to the point that Spike's complaints about her personal hygiene almost reached the intensity of her muscles' protests. The frustrations of countless dead ends and the sheer pressure of her self-appointed task hadn't helped either; if the fact she accidentally covered Rarity in ice wasn't bad enough, the light shower of flightless foals over the lands beneath Cloudsdale had a way of hammering home the importance of discovering just what caused the ponies' natural magic to go haywire.