Last
Glinda was the last one left. With Fiyero and Elphaba both dead she had no one left to rely on, no one to make decisions for her.
She felt far too young to be left alone already, and at the same time far older than her actual age. She tried not to dwell on the past, but it continued to haunt her dreams.
It was up to her now. She'd shirked taking responsibility before, but that time had long ago passed. It as now up to her to change Oz at last, not just for good, but for the better.