Wow! That's some mighty impressive sleuthing,
Noir Noir.
I'm not sure how you did it, though. How'd you figure out their last name was Heller?
(you don't have to answer my question if it's a trade secret) 
I am sure -at this point- some of you are experiencing
Claire & Clio fatigue. . .
...but there have been additional sightings.
#1
Ebay
Do you see her?
Let's take a closer look.
If you look closely, the word Clio & an arrow appear in the rocky terrain.
Now it's getting downright spooky.
In this 2nd pic, her mom (or her father) had Clio back up even farther!
(not taken on the same day / the excavation has progressed)
#2
She's barely perceptible.
Ha Ha
REVERSE
"Clio in the distance"
I don't know about you, but I don't believe I'd send my little girl down into a giant excavation pit.
When I first saw the photographs I wondered if her father worked for the excavation company. (
Noir Noir's research says Clio's father was a dentist)
Claire is missing in action.
.