(First Leg Ebbw Vale 29-3 Pau)
Martin Pearson kicked his fellow Welshmen out of the Parker Pen Challenge Cup as Ebbw Vale collapsed in France.
Pearson scored a try and kicked nine goals from all over the park as Pau overturned a 26-point first-leg deficit in stunning fashion.
The Steelmen's 29-3 victory at Rodney Parade last weekend was quickly forgotten as Pau welcomed back several star players and ran riot. Damien Traille picked up a brace of tries and international No 8 Imanol Harinordoquy, who missed last weekend's match, also got on the scoresheet.
Pau play fellow French club Castres Olympique in the semi-finals after Casters demolished Romanian side Dinamo Bucuresti 123-0 on Friday night for a massive 211-0 win on aggregate.
Pau: Tries - P Carboneau, D Traille 2, M Tincu 2, I Harinordoquy, M Pearson, P Som, M Barrague; Cons - M Pearson 9.
Ebbw Vale: Tries A Bevan, R Davies, B Shelbourne: Cons - B Shelbourne 1
Pau: S Jonnet; J-B Peyras-Loustalet, M Pearson, D Traille, J-C Cistacq; D Aucagne, P Carbonneau; F Guatieri, M Tincu, O Sourgens, M Jolly, B Bordenave, J Carre, P Som, I Harinordoquy
Replacements: D Laperne, M Larrouy, T Cleda, M Barrague, D Arrieta, N Sestaret, E Artiguste
Ebbw Vale: R Davies; A Takarangi, R Shorney, E Binham, A Bevan; S Mitchell, B Shelbourne; A Black, J Evans, M Jones, O Booyse, P Sidoli, C Billen (capt), T Morris, K Tuipulotu
Replacements: D Penisini, P Jones, K Crawford, W Thomas, N Wakley, M Meenan, T Bagg