For four days, Minos' group investigated the places near where they had arrived in search of Leger's group. They went through caves, looking for possible traces of the allied group, possible abandoned belongings, or even hidden messages.
If it had been them in place of Leger's group waiting for an ally, they would have left something wherever they went to leave a trail for their allies.
And, as expected, they found several things during their four days of investigation!
In a cave they passed, they collected abandoned resources and artifacts, among them a message from Leger's group, indicating that 10 of those who left Oqia had arrived in Uzira.
But there was nothing to show where they had gone, confirming the hypothesis that Leger's group had been attacked and forced to flee, if any of them had survived, of course.