Ireland fell to a first defeat in 12 years to Scotland in the Women's Six Nations at Donnybrook.
The Scots arrived with only a losing bonus point to their name after three rounds and encountered an Irish side who had claimed back-to-back wins over Italy and Wales.
However, Adam Griggs' charges were made to pay for a series of unforced errors, while the visitors took their opportunities when presented.
A poor quality first half produced just one score with Scotland holding a 3-0 advantage via a penalty from centre Helen Nelson.
The same player scored the first try of the game two minutes into the second half to extend the lead.
That led to a period of Irish domination that was rewarded with a penalty try eight minutes later.
Scotland were reduced to 14 when prop Megan Kennedy was yellow-carded and it look as if the hosts would take the lead after coming close on a number of occasions.
Chloe Rollie scores a try that Jacob Stockdale would be proud of to extend @Scotlandteam's lead over @Irishrugby #rterugby pic.twitter.com/a8bK5XWe7G
— RTÉ Rugby (@RTErugby) March 11, 2018
But full-back Chloe Rollie picked off a risky pass close to the line and ran the length of the field for a try that was converted by hooker Lana Skeldon.
Paula Fitzpatrick reduced the margin with a try off a ruck and Ireland had 10 minutes to find a winner.
However, they never managed to create a clear chance and the Scots held out for a famous first victory.
Ireland next game is against England at the Ricoh Arena on Friday .
Meanwhile, the IRFU will today honour 112 players who represented Ireland between 1994 and 2006 with a caps presentation at the Aviva Stadium.