The Union Brigade moves up in support of the light cavalry
French lancers bear down on the doomed riflemen left as rearguard
Riflemen re-establish themselves in and around the sandpit
Guard cavalry starts to threaten the Allied left.
Crunch time! The Allied light brigade crashes into the French cavalry, both sides have more horsemen in support.
The feeling is that the last act is about to begin.
More soon, thanks for looking.