Complex sentence: By the morning of February 9, the thriving community lay in ruins--more than 60 buildings were burned and residents were dead, taken prisoner, or fled as refugees to the safety of the fort at Albany.
Split into simpler sentences: By the morning of February 9, the community lay in ruins--more than 60 buildings were burned. Most of the residents were dead or taken prisoner, with some survivors' managing to flee as refugees to the safety of the fort at Albany.