User blog comment:Void Samukai/Tenelapis/@comment-24882568-20160316203434/@comment-11135771-20161024025749

Although the bombardment of the ground and the surface of the pillar has little effect, the newly reinforced Yevata troops begin making significantly better progress. As they begin to take ground more effectively, tunneler casualties skyrocket. Several hours in, the tunnelers begin attacking in significantly smaller numbers, and by around noon of the following day, the attacks have stopped almost entirely apart from occasional burrowing raids by small groups of the creatures. Sensor readings indicate a high degree of activity deep within the pillar.