Two characters are walking a corridor in a school, and the following appears in two thought bubbles around one of them.
渡り廊下を越えるって事は
向かっているのは特別棟か
How can 特別棟 be a statement about 向かっているの? As far as I know, the の particle after a verb can mean requiring or giving explanation, or it can make a noun out of a verb. Can it make 向かっているの mean "the place toward which we're going"?