The day of Sombra's return is nearing. Twilight and Rarity are on a mission to Canterlot, and they can't find the problem. A mysterious force attempts to stop the purple alicorn. Also, Celestia is a spider, but that’s not particularly important.
Celestia is a spider. Celestia remains a spider. And we-Well, we didn't really have anything to do with it, but we're still the ones who have to suffer the consequences.
Upon waking up one day and finding out that she'd become a spider, Celestia had reacted in a surprisingly calm manner, simply deciding to inform her subjects of the fact. Chrysalis, unfortunately, had not been among them. It disturbed her greatly.