What happened to John Thornton on the Forty Mile Creek and how did Buck save him?
1)Thornton was flung out of the boat into the dangerous rapids and Buck went into the rapids with a rope to save him
2)Thornton fell off a cliff and Buck ran under him to break his fall
3)Thornton's tent caught on fire and Buck pulled him out to safety
4)Thornton's boat started to sink and Thornton went under water and he almost drown.
5)Other:-------------------