In one of the most memorable Senior Cup ties, High School reached the semi-finals on penalty strokes after a stunning 5-5 draw with Mount Temple at Danum in the one tie played this week.
It was a truly remarkable tie with Temple scoring in the last minute of normal time to tie the game at 3-3 before falling behind in extra-time only to score twice in the last 90 seconds and force penalties.
In both instances the Clontarf school's coach Gareth Borland sacrificed his goalkeeper Senan O'Mahony to sub on an extra forward.
It led to some bizarre scenes, notably when High School's Irish U18 captain was hacked down with an open goal gaping.
He was awarded a penalty corner but his dissent meant the decision was overturned and a sin-binning ensued from which Temple went up the pitch to forge their second incredible comeback.
But Stewart Williamson held his nerve to slot the vital penalty in a 3-2 result and gift High School a place in the semi-final where they will play Sutton Park, conquerors of Sandford Park.
The hosts had started the stronger with Mark Evans opening the scoring only for Mark Ryan and Andrew Hare to put the northsiders in front.
O'Donoghue and Guy Prendergast, though, put High School in the driving seat as normal time entered its final minute.
Desperate times saw Borland take his first desperate measure and it immediately drew dividends when Adam Merry -- the first round extra-time hero against King's Hospital -- popped up to make it 3-3 in the last seconds.
But the Rathgar school looked set to advance when O'Donoghue again scored and Stuart Gray put two between the sides for the first time in the game.
But Temple produced their comeback with Mark Ryan to the fore only to have their wings clipped in the penalty competition.
John Scottus play Kilkenny this week while St Columba's face Dundalk GS in the remaining two quarter-final ties.