Boss had sent two of the children to scour the nearby forest in search of the campsite of the spider beasts. Their small size made them almost undetectable which was advantageous during scouting missions.
They returned to him with the information he needed. They had spotted a large number of larger spider beasts gathered in the clearing up ahead.
"Are you sure you're going in alone?"
"Boss! Let me go with you!"
"No, I'll go with you instead!"
The other children were worried and afraid of the spider beasts, but they were unwilling to let their leader go in alone. But Boss was insistent on going solo. The incident at their campsite had left the vulnerable and he worried for their safety.
Furthermore, some of them were injured and still recovering.
"I will go alone, everyone else remains on high alert and be safe. If anything unusual happens, report it to me immediately," those were his parting instructions before he set out.