Based on the mood of the excerpt as well as its shared root with the word phantom, what does fantods mean?

If this is the missing excerpt:
"But by and by sure enough I catched a glimpse of fire away through the trees i went for it cautious and slow by and by i was close enough to have a look and there laid a man on the ground it most give me the fantods he had a blanket around his head was nearly in the fire" - from chapter 8 of the adventures of huckleberry finn 

The fantods means CONCERN. 

He is concerned because he saw a man whose head is surrounded by a blanket and is very near the fire.