Knowing that so much was going on, Walker felt that he couldn't be in enough places at once. Just returning from the volcano was hard to do since so many things could still be monitored there.
The fall of ash and smoke were still an issue, even though it had become somewhat constant now and did not encompass a larger area than the lava fields. It was still worrying since it was an erupting volcano though.
He also knew that he could easily be someone appraising the many unknown materials being found. The volcano was sending plenty of them out in to the wilderness when it erupted. Sending more than just molten stone around.
That also presented a danger to those who had begun to rush there for material gathering. They could claim that they would be safe all that they wanted. However, Walker would still question it since even he would take some damage from the potency of molten rock and ores. If he didn't, he might be a little worried about himself still.
