In Mars Squad's tent.
Noland Lee was placed on a chair by the guards.
About one minute after the guards left, a sharp whistle suddenly rang out in the camp.
"Twee! Twee! Twee!"
This was the whistle that scouts would blow when they encountered an emergency situation:
"Report, Chief Officer! There's a big problem! The undead on the First Underground Level and Underground Layer 2 have revived ahead of time! They're assembling a huge army and surrounding our camp!"
Pim's voice reached Noland Lee's ears:
"Stay calm, soldiers! ...Everyone, listen up! I command you to defend the camp at all costs! No retreat!"
"Chief Officer, what about Lieutenant Grett on the Third Underground Level? We must go and save him!"
"No, soldiers, I will go save him! I will lead my strongest men and venture down to the Third Underground Level to rescue Lieutenant Grett. You all must stay here and hold the position! Understand? Don't let Lieutenant Grett return to see a devastated camp!"