South Africa never ever gives up a Test match. They were, not so long ago, the greatest travelling team in the whole world. They remain experts of the blockathon. And when you have the courage - the audacity - to bat out entire days of cricket, a target of 212 in a home game is nothing to worry about.
That first Test defeat in Centurion now looks like an anomaly. South Africa went into it after six months in the red-ball wilderness. The rust they were still shaking off was deeply obvious on that first day's play. Since then, they have rallied and rallied hard. Lungi Ngidi said this wasn't a team of superstars. He won't be able to keep saying that if they keep playing like this.
They've discovered a beaut in Keegan Petersen. And another in Marco Jansen.
They've lost Quinton de Kock to retirement but their other senior players are all fired up to play Test cricket again.
Dean Elgar is the perfect man to lead them. In Temba Bavuma, he has a fine middle-order fighter. This team may be in transition but there is light at the end of this tunnel.