The moulting cave was extremely near the surface (probably due to all the third leg segments being missing) and had been sealed with a shell. The cave actually got uncovered when another Indo moved into the shell and walked off, revealing little Smartie sat with a stash of egg shell that he'd also dragged into the hole to eat! I popped him into a cricket tub with some Calcium Crunch popcorn and crab exo while I quickly changed the water then he was off and pootling around the setup again.
As you can see Indos naturally have very long antenna!