Okay. Still not a mutant. Cool.
In her distraction, she stopped tunneling; she starts that up again. The sun sinks below the horizon, and her tunnel network steadily expands. She discovers that if she needs a Tunneler to retreat along its tunnel, it's much faster to cover it in liquid Clay and have the Clay slide it along than to make it crawl backward with its own stubby limbs. Maybe she can slime-scoot herself across the border in a tunnel deep beneath the earth. The Sentinels probably aren't watching for that.
For now, though, she's too nervous to dig that far north even if she does it two hundred feet below the surface. She stays a respectable distance away from the border and digs her tunnels out and down, sneaking under roads and cities, dodging around pipes and sewers.
Some hours into the night, she blinks and realizes she's been daydreaming, running the Tunnelers on automatic. None of them seem to have gotten in trouble. She keeps the pattern going with the fraction of her attention that is apparently all it needs, and turns her thoughts to learning more about her power.
It would be useful to have some normal animals as scouts and spies. She has some Clay ooze up through the ground, then sends it sliming around to trap and eat some wildlife. Her library expands by six squirrels, some miscellaneous less-identifiable forest-dwelling rodents, three raccoons, and an owl. She's glad she doesn't have to watch the Clay dissolve them; seeing their struggles with lifesense is bad enough.
...somehow it just seems so much more gross to lay raccoon eggs than horrible demonic worm eggs. Why? She has no idea. But if she wants raccoons, she's going to have to make them herself.
The raccoon egg hatches twins. She feeds them wet Clay; they reach adult size in less than a minute, bright-eyed and slimy. She sends them scampering out into the forest and hatches two more. A coyote stumbles across one of her Clay puddles; the Clay engulfs it, and now she has a coyote in her library too. The raccoons seem more useful, though. She has them wash the Clay from their fur and hide in bushes to watch for trouble.
Owls next? Hmm - no. First she wants to see if she can make creatures that make other creatures. Otherwise this project is going to have one hell of a production bottleneck.
Half her raccoons are female. She tries to figure out how to make them grow eggs. It doesn't work, not even if she tries to have them hatch more raccoons - not even if it's the same raccoons, the child a clone of the parent - not even if she has the prospective mother sitting in her lap at the time.
The floor of her hut is almost an inch deep in egg-related fluids. As soon as she notices, she has trouble forgetting again; it's very attention-grabbingly gross. She has the floor crack to release some liquid Clay, and the Clay absorbs all the fluid. Sitting in Clay feels much nicer.
What else could she try? ...she's in that library; she could hatch a clone of herself, see if Second Naomi inherits all of First Naomi's otherwise-unique powers.
No, she decides, she's not in nearly enough trouble yet to make that experiment worthwhile. No hatching creatures with human brains until she expects to need a big army in a big hurry. —That, or if she thinks she might need an extra Naomi for the brainpower, to handle all this hatching and tunneling and spying and wildlife-grabbing; she's definitely doing more things at once than she would've been capable of yesterday, but it seems like there's still only about one Naomi's worth of real conscious creative problem-solving attention.
For now, though: owls. They come out three to an egg; she hatches twelve. As far as she can tell, none of her creatures are hungry, not after that first meal of Clay to get them up to adult size.
...come to think of it, if she hasn't eaten in almost a whole day, where is she getting all these eggs? Never mind eating for two, she's not even eating for one! She starts another Tunneler growing inside her, and this time pays close attention, but she can't quite tell if the rest of her is lighter by one Tunneler egg once it reaches laying size. If only laying them wasn't so distracting, she might be able to gather better data. As it is, she hatches three more and still can't quite figure out if she's wasting away. Maybe she should eat some Clay herself, just to be sure. She does that. It tastes nice. Sort of like fruit syrup.
The sun rises. She hatches six more raccoons and sends them sliding through her tunnels to lurk by the sides of roads as spies. With bellies full of Clay, they're walking relays for her life-sense. (When she sends one out with no Clay, just to check, it's as much under her control as ever but she can't use it as a sense relay. She sends it back into the tunnels to fill up, then has it scrounge through somebody's garbage for discarded newspapers.)