Rarity learns that she has a very rare form of cancer, horn cancer, just three days before her twenty-sixth birthday. She spends her dying moments with Spike, and then, moments before her death, Spike reveals to her his greatest, and worst, secret. (Not the crush, she's always known about that.) P.S. Fancypants is a doctor in this story, and it gives explanation. Rated teen for some language.

Spike goes over his thoughts and feelings as he spends time with his sickly love in her final moments.