A full rewrite of the story Hourglass (Time Loops) along with a few additions.

Twilight Sparkle and Princess Celestia looked at an hourglass before they got stuck on a time loop because of an item. Learning that they might be stuck in this something, will they ever escape? Will it be the cause of their death? Will Twilight and Celestia ever return to their former lives after this? Will the hourglass be destroyed after they've got out of this?

Hourglass (Time Loops) was a One-Shot Sci-Fi story.

This story, is a regular Sci-Fi story collab.

Innortal Loops are awesome, don't compare! In fact, I myself have contributed in that collab story! Not related (if it is then it's a Nesting Doll Protocol… go nuts finding what that meant.)