A new submersible is to be tested to its limits in a voyage that could very well break it. This expedition, lead by Princess Twilight Sparkle, is expected to succeed tremendously, by her estimations. Nopony could have predicted what would really happen after The Eclipse set sail. It can be described in many words, but success is not one of them.

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Warnings: Yes it's marked mature with sex, no it's not clop, I just have some plans that will be unveiled as the story progresses.

Hope you enjoy, I know it's not the best ever, but please leave any sort of criticism in comments. Also point out mistakes if you see them.

Special thanks to my man, Mikesnipe for giving a few tips, and helping proof read. He's a total bro, and a good friend, so go follow him.