The Better Son

1952. Tasmania. The beautiful green, rolling hills of the dairy town Mole Creek have a dark underside — a labyrinthine underworld of tunnels that stretch for countless miles, caverns the size of cathedrals and underground rivers that flood after heavy rain. The caves are dangerous places, forbidden to children. But this is Tasmania — an island at the end of the earth. Here, rules are made to be broken.

For two young brothers, a hidden cave a short walk from the family farm seems the perfec...