However , to prevent capture , the Rangers choose to return across Quebec and northern Vermont , through the forests along the eastern shore of Lake Memphremagog .
In a predawn attack , the Rangers annihilate the town and kill about a quarter of the population .
To prevent capture , the Rangers choose to return across Quebec and northern Vermont , through the forests along the eastern shore of Lake Memphremagog .
In a predawn attack , the Rangers annihilate the town and kill about a quarter of the population .