A class system. Solus3 (Earth) had become divided into
FIVE main zones. Upper hemisphere, lower and the
Equatorial

A water based reptilian with, it would be eventually discovered; to be of 4 main variants but the capture of the first of them?

Taken to laboratories and experimented on. Two of them, too primitive, too simple a life form, to know WHY and WHO those land creatures were ?

The main laboratory complex, had military trained sciestes..
One of them was Shui,  An experienced genome specialist. 

Oceanography was another of her specialties AND it was no surprise to her when they kept finding new critters in the depths.

Over the last century, the oceans had seen increased warer levels, flooding of some land masses. Florida for instance was no longer above water. The bulk of that had sunk beneath the waves.

WAVES ah yes huge waves from the Tsunamis that had resulted from the plates shifting AND not only earthquake but volcanic eruptions.
NOT only above ground but below.. DEEP in to the depths.

Divers had found the structures, the cities of the Ancients. 
Decoding of some of the Ancient tablets. sealed within stone work chambers with lost data located within crystals.

The experimentation on this new found species had increased as they were now hunted.. A enzyme within them, was found to increase life expectancy. The price for such, once the secret was out.?

Extracting the chemical whilst keeping the reptilian alive was demanded.
THEY were NOT allowed to die. The pain, the terrible suffering, screams as no pain relief could be given..

For Shui it haunted her. In the end she refused and in doing so, her masters knew that if she was allowed to live? THEY would be in serious trouble with certain extremists.

She needed to be silenced. An assassin. Now following her as she left work to head home. In the shadows, the misty murky shadows; waiting
for her to cross the wetlands.

A nearby toxic waste processing facility would be suitable to dispose of the dead body. Normally Shui did not use the route she was on tonight.
A short cut saving her a lot of TIME.. BUT could be dangerous re random attackers..

Removing a device, she placed into the palm of her hand.. hooked the strap around her wrist. Anyone attacking would be in for a nasty shock.

The smell.. was causing her to cough.. lingering on her nostrils in the damp cold night air.. thickening snot.. A drip sliding past it, along the thick sludge forming as she coughed to stop, spit out, one thick lump of snot..

A growl , a snort within her sinuses..as she cleared her throat. 
The rasp across her tongue.. she restarted her walk. A little more brusque..

Unaware of the assassin lingering in the shadows, the footsteps behind her that she heard but dismissed as simply being an echo of her own?

Owen had been following behind her. A little ways back and
more than aware, that it was as he put it. a night not to linger
for too long.

For Owen he was always on guard. Tonight was no different.
Up ahead he had seen a ways back, Shui. NO he did not know
her personally but ? He felt protective towards her.

He would continue following her .. it was not that long a walk..
Then he noticed her shape, her form partially obscured.. by shadow?

He knew that could only mean one thing.. the shadow, of a
would be attacker. He quickened his pace.

The new reptilian species? Unknown to their captors, they could communicate  via a means unknown to them and deep within
the depths of the Ocean..

Others of their species were gathering to launch an attack..
Over a hundred of them and different in form, in body strength,

At the laboratory complex those there would see these creatures
step out of the water towards them.

From their webbed hands the flash of bolts of energy.
NO mercy to any who stood in their way.

The entire complex was decimated. Burning, twisted crumpled
structures. The torturers, sciestes taken and fed to their beasts.

NO mercy, no pain killers, no toilet tissue..
for those lined up behind them.