When she's not out in it, Rarity loves rain, especially when the soothing sound of it against her windowpanes acts as a lullaby to get her to sleep. Before she can rest, however, she suddenly feels a familiar urge to check on a certain unicorn filly. She finds what she expects: Sweetie Belle after a nightmare. What she doesn't expect are the filly's out-of-left-field questions and the night to turn into one where Sweetie discovers her long-held secret.

The cover image is from Chasing Away The Nightmares by PonyEcho on Deviantart