This particular kraken was the oldest of the bunch. According to shell scrapings, old Shelly, as the small dedicated Kraken Watch referred to it, was more than ten thousand years old, and had been masquerading as an island in Helsinki Harbor since the sixteenth century, when the town was known as Helsingfors.
In all that time, Shelly had done little but feed and sleep, feeling no urge to migrate. Any need he may have felt to move on was dulled by the seepings of a paint factory built on his back more than a hundred years previous. For all intents and purposes, Shelly was catatonic, having emitted no more than a couple of methane flashes in over fifty years, so there was no reason to believe that this red light on his sensor was anything more than a crossed wire, and it was Holly’s job to uncross it. It was a standard first-day-back-on-the-job kind of mission. No danger, no deadline, and little chance of discovery.
Holly turned her palms into the wind, descending till her boots scraped the roof of the island’s small restaurant. Actually there were two islands, separated by a small bridge. One was a genuine island, and the other larger section was old Shelly nestled into the rock. Holly ran a quick thermal sweep, finding nothing but a few rodents and a blotch of heat from the sauna, which was probably on a timer.
Holly consulted her visor for the sensor’s exact location. It was twelve feet underwater, tucked below a rocky ledge.
Underwater. Of course.
She stowed her wings, midair, then plunged feetfirst into the Baltic Sea, corkscrewing to minimize the splash. Not that there were any humans close enough to hear. The sauna and restaurant did not open until eight, and the nearest fishermen were on the mainland, their rods swaying gently like rows of bare flagpoles.
Holly vented the gas bags in her helmet to reduce buoyancy, and sank below the waves. Her visor informed her that the water temperature was a little over ten degrees, but the Shimmer Suit insulated her from cold shock and even flexed to compensate for the slight pressure increase.
“Use the Critters,” said Foaly, his voice crystal clear through the vibration nodes over her ears.
“Get out of my head, centaur.”
“Go on. Use the Critters.”
“I don’t need a tracer. It’s right there.”
Foaly sighed. “Then they shall die unfulfilled.”
The Coded Radiation Tracers were microorganisms bathed in radiation of the same frequency as the object being located. If you knew what you were looking for before leaving Foaly’s workshop, then the Critters would bring you right to it; though they were a little redundant when the sensor was a few feet away and beeping on your screen.
“Okay,” moaned Holly. “I wish you would stop using me as a guinea pig.”
She pulled back a watertight flap on her glove, releasing a cloud of glowing orange mites into the water. They bunched for a moment, then sped off in a ragged arrow toward the sensor.
“They swim, they fly, they burrow,” said Foaly, awed by his own achievement. “God bless their tiny hearts.”
The Critters left a glowing orange wake for Holly to follow. She pulled herself below a sharp ledge, to find the Critters already excavating the growths covering the sensor.
“Now, come on. That is handy. Tell me that’s not useful to a field officer.”
It was very useful, especially since Holly only had ten minutes of air left; but Foaly’s head was big enough as it was.
“A gill helmet would have been more useful, especially since you knew the sensor was underwater.”
“You have more than enough air,” argued Foaly. “Especially since the Critters are clearing the surrounding area.”
The Critters ate away the rock and moss covering the sensor until it gleamed like the day it came off the assembly line. Once their mission was completed, the Critters flickered and died, dissolving in the water with a gentle fizz. Holly switched on her helmet lights and focused both beams on the alloy instrument. The sensor was the size and shape of a banana and covered with an electrolytic gel.
“The water is pretty clean, thanks to Shelly. I’m getting a decent picture.”
Holly topped up her suit buoyancy a few notches until she was at neutral, and hung in the water as still as she could.
“Well, what do you see, Foaly?”
“The same as you,” replied the centaur. “A sensor with a flashing red light. I need to take a few readings, if you wouldn’t mind touching the screen.”
Holly laid her palm on the gel so that the omnisensor on her glove could sync with the ancient instrument.
“Nine and a half minutes, Foaly, don’t forget.”
“Please,” snickered the centaur, “I could recalibrate a fleet of satellites in nine and a half minutes.”
It was probably true, thought Holly, as her helmet ran a systems check on the sensor.
“Hmm,” sighed Foaly, thirty seconds later.
“Hmm?” repeated Holly nervously. “Don’t hmm, Foaly. Dazzle me with science, but don’t hmm.”
“There doesn’t seem to be anything wrong with this sensor. It is remarkably functional. Which means . . .”
“That the other three sensors are malfunctioning,” concluded Holly. “So much for your genius.”