The last days of Old Equestria. Seafoam leads a (fairly) happy life as an MoP engineer, but it would take a catastrophe to make her realize just how lucky she is.

Daring, seeking new adventures, pays a visit to her aunt Brighteyes, another adventurer. However, all is not well, and out redoubtable heroine quickly becomes embroiled in a conspiracy that will take her far from Equestria, and far into danger of the very worst kind- that posed not by terrible beasts, or hostile terrain, but by her fellow ponies.