It's extraordinary how quiet nearly 50,000 people can be.
Ibrox, a place of unending noise all night, fell silent five minutes from the end when Cyriel Dessers turned inside Archie Gray and looked to all the world like he was going to win it for Rangers.
In that split-second, the stadium held its breath. Suddenly, it was about as boisterous as a mouse tip-toeing around a library full of an order of silent monks.
Dessers did brilliantly, but not brilliantly enough. This city knows all about the goalkeeping excellence of Fraser Forster. His years at Celtic were full of stellar saves from some of the greats of Europe.