In one of their best away displays in recent seasons, Rotherham played with attacking flair in the second half as they overcame London Scottish’s 10-6 lead at the interval.
While Rotherham made too many errors in the first half, they came back strongly in the second as Cruse completed fine moves which ruined the Scottish defence.
And with centre Juan Pablo Socino adding two more penalties, Rotherham astonishingly led 24-16 after 76 minutes.
Rotherham were now playing with much more discipline and attacking Scottish in the right areas of the pitch.
However, just when it appeared that Rotherham had the game under control, their authority was challenged again.
In the first minute of injury time, Scottish scored their second try of the game.
Full-back Jim Thompson finished off a devastating attack which threatened to ruin Rotherham’s grip, and with replacement fly-half Lee Millar converting, Rotherham’s lead was reduced to only one point.
But in what appeared to be an endless period of added time, the Titans defended solidly and they held on to their narrowest of leads to complete their fourth win in five league games.
The fact that Rotherham lead the Championship overnight owes as much to their defence as their flair in attack.
Delighted coach Lee Blackett said: ”The whole team played with total commitment for the whole 80 commitments.
“I am delighted with the start we have made to our season and I thought Cruse took his tries superbly.”