Voices in the Dark? Hope and Doubt in the Laos Cave Rescue.

In central Laos, a desperate rescue mission is turning into a tense puzzle. Two men remain trapped inside a flooded cave network, and time is running out. Over the weekend, five of their companions made it out one rescued by divers, four clawing their way to freedom on their own.

Earlier, there was a flicker of hope. Rescuers thought they heard knocking sounds deep inside the cave maybe a signal from the missing men. “We can’t confirm it was them, but there were clear knocking responses to our signals,” a Thai cave diver said.

But by Monday evening, that hope had dimmed. An Australian diver on the team flatly dismissed the reports. “That is absolutely not true,” he said. The noises, he explained, could have been bats, wind slipping through rock fissures, or other strange echoes from below. “They didn’t sound like they were replies.”

Still, the search continues. Rescuers have found a new vertical shaft, plunging over 100 meters deep, which might offer safer access to the flooded chambers. They’re waiting for advanced scanning gear to map the cave clearly. Heavy machinery is being used to pump water out and build ponds to stop more flooding from recent rains.

The nightmare began on May 20. Eight villagers entered the cave looking for gold. Then heavy rain blocked the exit. One survivor managed to raise the alarm, sparking an international rescue effort. Five emerged alive on Friday and Saturday. The remaining two are believed to have entered through a different route.

But the way forward is uncertain. The new shaft is “completely full of rockfall and landslide,” one diver warned. And the air pocket where the missing men might be sheltering is through a “fairly lethal passage” tight, unpleasant, and deadly. “We’re not entirely sure what the next steps are,” he admitted.

The five survivors spent over a week in the dark, surviving on water and sleep to conserve energy. They’re now recovering in a hospital. For the two still underground, the rescue team is holding a late night meeting to decide their next move while above ground, the rain keeps falling, and the floodwaters keep rising.