She is getting very far away from that Sentinel, and heading into the nearest patch of woods until she can no longer detect humans by their lifeforce or man-made structures by their ground footprint anywhere inside her range, and then she is unpacking her Clay and making it break open its rocky shells and eat some shrubs.
...as soon as the Clay has munched a few leaves, the bush it's consuming gets added to her internal library. It's not quite as fast as touching things herself, but that's interesting. (If she made a plant with her powers, would she give birth to a seed...? She can experiment later.)
Viscous red goo spreads out to carpet the forest floor, eating all the grass and bushes and fallen twigs that it finds. Her library expands by several more plant species. Then she makes the Clay heap itself up to form walls and a roof, and harden its outside and inside while leaving a layer of free-flowing goo in between, and she steps into her lumpy new home and heaves her suitcase onto a Clay shelf and and double-checks that there are no people anywhere in her range. There aren't. She takes off her clothes and packs them away and sits down to make a Tunneler.
Its egg grows to the same size as the Clay eggs, and emerges in just the same fashion. She lies there for a minute, panting, then sits up to examine her new creation.
The baby Tunneler hatches itself at her command: a foot-long squirmy pink lizard, tiny legs flailing. Its every movement is controlled by her will, and as easy as moving her own body; when it opens its beady little eyes, she can see through them.
"What the fuck," she says, and hears her words echo dimly in tiny lizard ears.
Okay. That's... more convenient than otherwise, really. She sends the Tunneler outside; the Clay on the ground tastes pleasantly sweet to it, so she has it lap some up, then sends it burrowing into the dirt. Its fearsome jaws and sharp little teeth chew through rock with hardly a pause, and she can feel it growing, its tunnel widening from a pencil-thin hole to a burrow big enough for her to crawl through. That's around the point where its growth starts to slow. Rather than having it keep digging around at random, she brings it to the surface a little ways south of her cabin and sends a glob of Clay rolling over to follow it, then has it chew its way back underground and start making a Clay-coated tunnel out to the approximate edge of her base range. Her lifesense expands to follow it, relayed by the Clay.
Can she control two of these things at once? Let's find out.
When she makes another one, she has to pause the excavation while she lays the egg, but once she's through with that part, she can send out the second Tunneler and control it just as easily as the first. She makes a third, a fourth, a fifth, and sets them all to expanding her network of tunnels, digging deep beneath the earth and avoiding anything that looks like civilization. They can sense buried pipes and cables - something about the way the vibrations of their digging reflect back to them - and she has them route around those. It would be a bad idea to attract attention by breaking something.
By this point her life-sense has such a wide coverage from so many angles that she's starting to feel like an all-seeing goddess. She's pretty sure the radius of her network isn't much more than half a mile, though, and that is insufficiently all-seeing and goddesslike for her purposes - barely twice her base range. She hatches five more Tunnelers and sets them to work.