In the morning I stumbled down the staircase and choked down a chunky breakfast smoothie.
He grabs it and comes down the staircase, and as he does he glances out a south-facing second-floor window.
Three artists were involved: Pierre Puvis de Chavannes and Edwin Austin Abbey decorated the staircase and corridors.
staircase stair·case (stâr'kās')
A series of reactions or responses that follow one another in progressively increasing or decreasing intensity, so that a chart shows a continuous rise or fall.