Concealed in example sentence
Now, as he lurched about in his efforts to muster all the strength he could for running he could hardly keep his eyes open; his thoughts became too slow for him to think of any other way of saving himself than running; he almost forgot that the walls were there for him to use although, here, they were concealed behind carefully carved furniture full of notches and protrusions - then, right beside him, lightly tossed, something flew down and rolled in front of him.