Carlow star Ciara Quirke scored a goal and nine points as Myshall added another chapter to their remarkable story, and that of Barrowside camogie in recent years, by winning the AIB All-Ireland Camogie Intermediate Club title at Croke Park.
While Myshall had the upper hand for the majority of proceedings, they had to withstand a determined rally from Eglish that fell narrowly short.
Indeed the victors could count themselves fortunate in the end as Ciara Donnelly had a chance from a free to equalise, with 30 seconds of stoppage time remaining, but pulled her shot wide.
It was heartbreaking for Eglish's best player and she was distraught afterwards, but Myshall just about deserved for their captain, Niamh Quirke, to lift the Agnes O'Farrelly Cup.
They certainly held the upper hand in the opening period.
Quirke, who landed six points from placed balls in the first half, rifled a bullet to the roof of the net off her right from 12 metres to help Myshall to a 1-6 to 0-4 lead at half time.
But Niamh McNulty's 46th-minute goal changed the game, leaving three between them. Eglish poured forward and three consecutive points from the deadly Donnelly helped to leave the minimum between them.
However, hero of the day Quirke would score what proved the winner on the hour with a 64m free before Donnelly's effort in the dramatic conclusion.
SCORERS - Myshall: C Quirke 1-9 (0-6fs, 0-2 45s, 0-1 pen); E Coogan 0-1. Eglish: C Donnelly 0-9 (7fs, 1 45); N McNulty 1-0.
MYSHALL - J Joyce, P Whelan, N Quirke, M Nolan, B Nolan, K Nolan, Mairéad Doyle, C Mullins, T Wilson, O Jordan, A Ruschitzko, Marian Doyle, E Coogan, C Quirke, L Nolan. Sub: K Crooks for L Nolan (58).
EGLISH - L Gallagher, L Mason, B Horsfield, Cathy Jordan, Claire Jordan, C McGready, A Donnelly, S Jordan, A Jordan, C Donnelly, K Cuddy, N McNulty, M Haughey, M McHugh, L Donnelly. Subs: J Lagan for McHugh (36), A Barrett for Haughey (53).
Ref - F McNamara (Clare).