MATT Mills struck the only goal as Championship Reading claimed another notable scalp to reach the FA Cup quarter-finals for a second successive year.
Mills fired home after 26 minutes of tonight's fifth-round tie at Everton to put the Royals, who knocked out Liverpool en route to the last eight in 2010, within a game of Wembley.
Jimmy Kebe should have made victory more comfortable but goalkeeper Alex McCarthy also proved a hero with a stunning late save from Leon Osman.
Everton supporters booed at the final whistle and left Goodison Park frustrated as the inconsistency which has dogged their campaign returned to haunt them.
Their memorable fourth-round success at Chelsea, it appeared, had proved another false dawn.
The Toffees lacked a cutting edge in the first half and the situation was not helped by the late arrival of their weekend goal hero Jermaine Beckford.
Beckford, who struck twice against Sunderland on Saturday, was held up in traffic on the M62 in the afternoon and could only make the bench.
That left Louis Saha, who had his own car trouble when he crashed his Ferrari on Sunday, up front alone ahead of a midfield lacking influential duo Marouane Fellaini and Tim Cahill through injury.
Everton pressed on throughout five minutes of injury time but Reading held on.