Final answer:
The text does not mention Barbara, but describes the brutal execution methods used by Native American tribes on captives, including burning and torture as in the cases of George Cassen and the Paspahegh queen and her children.
Step-by-step explanation:
The passage provided does not directly address a character named Barbara running away from the Indians or their plan for her upon capture. However, similar scenarios in the text indicate that the Native American tribes have previously executed captives in gruesome ways, using methods such as burning them alive.
For example, the text describes the brutal torture and execution of George Cassen by the Chickahominy tribe as well as the execution of the captured Paspahegh queen and her children during a punitive raid led by Percy. These accounts serve as historical examples of how Native American tribes might have planned to kill captives during that period.