Apparently, not everything about the inheritance ground was good news. Although, with this short expedition, they had brought back some treasures in the form of Ability gems, Class Advancement Gem, rare herbs, or ingredients, they had also lost many good soldiers.
Obviously, an expedition in the ruins of the lost age was always a risky endeavour. The rankers who went into it knew the danger, but that didn't stop them. Only with their deaths did the higher-ups take this far more seriously. The treasures they brought back had been an eye-opener and did most of the convincing. But it couldn't be overlooked that more than a dozen rankers had died, and several went missing, including a couple of Captains and a few sergeant-ranked soldiers.