“[It was] a hell of a lot of fun yeah,” Bethell said. “And to walk off with Rooty [who made 23 off 15] at the end there was pretty special.

“To come out in the second innings and have a chance to walk off with an England win was at the forefront of my mind and luckily I was able to do that.”

The second-innings speed run was in keeping with how England attack smaller targets. Barring a thick inside edge to get him off the mark, the other eight boundaries were real statements shots. Especially a pull for six on to the grass banks of the Hagley Oval off Nathan Smith.

Smith did not take kindly to Bethell’s onslaught, having copped four boundaries off the left-hander in his first over. Bethell, however, was no stranger to short-pitched bowling. He was reared on it in Barbados – born and raised – as a regular target of the intimidatory tactics of bigger kids.

“I was very small growing up so I didn’t really get a lot in my half up until I was about 16 or 17 when I got a bit bigger,” he said. “I never had as much power on it but I could still play it well. And now it’s just a decision on whether to hit it on the ground or hit it for six.”

Such confidence, delivered with a mixed Bajan and Brummie accent that has a distinctly Welsh feel – which almost makes sense as the crow flies – is why England had no qualms placing him at No. 3. Even his first innings was met with something of a shrug.

Conditions were tough, New Zealand’s seamers up and at them. Bethell backed himself, but managed just 10 from 34 balls before fellow debutant Smith snicked him off. Root’s dismissal then had England reeling on 45 for 3 at lunch on day two.

“That’s part of the game, isn’t it?” Bethell said. “I saw it [as] if I got through to lunch, it looked like a different pitch after lunch. It does help when you’ve got Harry Brook batting, he makes it look quite easy.

“Since I was a little kid I’ve always dreamed of playing Test cricket, I remember watching the Ashes, and just any England Tests on TV and wanting to be a part of it”

“I think it could have been a different story, I battled hard and unluckily didn’t make it through to lunch but another day you get through and go on to make a big one.”

Ben Stokes singled out those 34 deliveries after the match rather than the half-century, clearly buoyed by the way someone so young owned his space during those first 49 minutes as a Test batter. “If he sticks to having that attitude, that swagger about him, I’m pretty sure he’s going to be alright,” Stokes said.

Bethell’s selection for the tour outright was a huge show of faith, picked as the spare batter despite a first class average of 25.44 from 30 innings – none of which had come higher than No. 5. Not that he was worried.

“Pretty much every time I’ve played against better people, I’ve played better,” he said. “Step up to the Hundred, played better. Straight into internationals, played better. I didn’t really have a doubt in my mind that coming into Test cricket that I’d have done well.”

Bethell, however, is hopeful he gets a chance to show he can thrive up top, something he wants to do at Warwickshire but has not yet been able to make a solid case for.

“I like batting up the order so, yeah, I was really happy that opportunity arose,” he said. “I’ve always wanted to bat in the top four so three is perfect.

“I think my game is fit to play any style. On Sunday we saw a bit more of an attacking style. I can also absorb a bit of pressure, so I’m sure at times in my career there will be times to do that as well.”

As a multi-format batter already, inevitably there will come a time when Bethell is pulled a few different ways. It may already be happening.

Following the conclusion of this Test series, he will head to Australia to fulfill his overseas commitments with Melbourne Renegades. And just last week, he was one of 12 English players picked up in the IPL mega auction, earning a maiden gig with Royal Challengers Bengaluru for a tidy sum of £245,000.

He will join England team-mates Phil Salt and Liam Livingstone at RCB. No surprises, though, for guessing who he is most looking forward to rubbing shoulders with.

“It’s a bit of a given, isn’t it?” Bethell said, with a wry smile. “Virat! He’s a great of the game so… King Kohli.”

Like all young players at the premier franchise competition, he wants to be a sponge. “Any kind of overseas player that’s gone over there has come back with a wealth of experience.”

But this first taste of the longest format has him craving more. With an Ashes tour on the horizon – England’s successful 2010-11 tour was his formative series – this format, and this team, are where he wants to truly establish himself.

“It’s everything I’ve dreamed of to be honest,” Bethell said of Test cricket. “Since I was a little kid I’ve always dreamed of playing Test cricket, I remember watching the Ashes, and just any England Tests on TV and wanting to be a part of it.

“And then since Baz [Brendon McCullum] took over with Stokesy, I’ve always watched it on TV and gone ‘how fun that does that look’ and it lived up to expectation. It was so fun.”