The 3rd Legion is in ruins. Almost wiped out after an assault went horribly wrong, their survival teeters on the brink of disaster.

Not only that, their commanding officer doesn't quite seem to be himself.

A side story in the Legends of Equestria timeline. Reading the other stories in the series is recommended, but at a bare minimum you must have read The Legionary in order to understand what is going on; https://www.fimfiction.net/story/469881/legends-of-equestria-the-legionary

This story is a sequel to Seapony Stories Volume 5: Walking on the Waves

Sara is worried for her friend, Tom, who has not been seen; a concern not helped by sightings of strange creatures. Little does she know, she's about to get swept up in the action.