Read The Bridge: Sound of Thunder
 
The mare kept galloping for awhile, moving trail to trail based off recollection; not wanting to slow down by pulling the guide out again even if the effort was winding her. She’d passed the caves a while ago. By her estimate, she was only a few hours away from the city limits; the knowledge that her teacher summoned her there meant it had to be urgent. For a denizen of a world as colorful as her’s, with shapeshifters, demigods, shadow kings, and chaotic beings that defied all logic, not also bearing giant monsters; it took a lot to give her pause when she was on a mission.
 
A few hundred gallons of water out of nowhere tended to do the trick.
 
Starlight ground her hooves into the dirt to skid to a halt, spinning around on her momentum to turn herself around and sprint away from the surge. Having been running on a trail cut into a slight incline, most of the waves thankfully washed away between the trees, down the slope, and into a creek down below; giving the pony enough time to move out of the way and not get overtaken. Starlight Glimmer turned back around as the sea water retreated away, leaving a soaked, muddy path littered with sediment and a few flopping fish. Still a tad dumbstruck as to what in the world was going on, Starlight gingerly approached the flooded path. The stench of salt was near overpowering as she approached; all much confirming it was sea water, all but befuddling Starlight as to how this was so. Stepping on the now exposed stone to avoid the mud, she levitated up one of the fish to inspect it.
 
Marine biology wasnt exactly a forte of hers, Chrysalis instruction tended to only cover what walked around on four hooves and it wasnt like her cutie mark study would cover anything that was sea going; so it took her a moment to recognize the bizarre looking fish. The vaguely serpentine thing could be almost accurately described as a mouth with a body, over sized fangs sticking out of its bottom jaws as it wriggled about. Along its flank orbs of light ignited themselves on and off as it struggled. Starlight probed back through memory, dimly recalling a textbook shed read through at her study a few months back. While unable to tell it was a viperfish, she did gleam enough from memory to recollect that bioluminescent fish are usually from the deep ocean.
 
Well that answers one question but Where did all this stuff come from?  
Starlight puzzled as she tossed the fish into the stream, looking at the area hit by the flash flood whilst scratching her head. She looked all around, half expected anything as obscene as an overturned truck for a marine park to be a reality. At this point she was groping for any answer out there. Sadly, even an off theory of a sea life bearing water spout wasnt proving itself true.  
Its like it just dropped in out of nowhere.
 
She was about to consider interrogating the fish when a quiet groan caught her attention. Hopping a few rocks forward, Starlight looked in its direction and found out that the flood out of nowhere hadnt just brought in fish. Obscured by a shrub it had washed into and half caked in mud was a large form. From her angle, Starlight Glimmer could only make out some bare bones details. Firstly it was fairly large, easily two meters long though she was having trouble getting any details. Secondly, it started moving. A thick tail flopped out of the cover, the motion sloshing off some mud to reveal a broad flipper. Clad in jagged, sapphire scales that almost seemed more akin to a reptile than a fish; the appendage wasnt the only thing freeing itself from the mud.
 
Upon seeing a hoof jutting out of the earth, Starlights eyes widened and she rushed over to help.