When Simon had left, it meant Thalesin was on his own."I shall wait for Orren, at least then someone can tell him the situation if necessary, be safe comrades," he said to himself as he continued to wait, lurking around and eyeing the grocery store while still messing with his small ball of acid.

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"The others went in, I've been outside waiting," Thalesin, appearing from the shadows, when he heard Orren's voice ",They seemed impatient in waiting for you." When Simon had left, Thalesin had decided to remain behind and not go after, to at least have one person who had waited patiently was better then having them all enter.
"There's a ventilation shaft that most went through to enter, Colin said wait for 30 minutes before going after or getting help but most entered before the time was up," Thalesin said in a flat ton as if reciting a list.
"I would suggest an alternative route, a maintenance door which one did appear to take rather then the ventilation system. Perhaps we should enter from there," Thalsin continued.