Erin was a guide in Glacier Park in Montana (蒙大拿州), USA. In July 2011, she took a group of eight people on horses for a 1 in the woods. Erin was on a big white horse called Tonk.
Everyone was ready to have fun, and the ride 2 well. Erin knew there were bears in the woods, but 3 didn't usually go near people.
4, an angry, 300-kilogram grizzly bear (灰熊) came out from the trees. It was very close to an eight-year-old boy on a horse. The boy's horse saw the bear and became very 5. It ran away with the boy on its back. The bear ran after them.
Tonk was afraid, too. He didn't want to move. But Erin needed 6 the boy. She didn't stop to think. She gave Tonk a kick and they went after the bear.
Erin found the bear near the 7 and his horse. Then the boy fell off the horse and the bear started to go 8 him! Erin put Tonk between the bear and the boy. Together they ran at the bear three times. The bear made a terrible noise－9 then it went away. Erin 10 the boy and took him back to his father and the other riders.
The boy's father was very moved and Erin and Tonk were heroes!
