The Doonhamers slipped to sixth in the Championship table after an emphatic 3-0 defeat at Easter Road, with Hibernian crowned league champions.
Gary Naysmith`s men were second best all afternoon and were put to the sword by a first-half Darren McGregor double and David Gray strike.
The buzz around the sold-out Easter Road proved to be too strong for Queens to handle and found themselves up against it from the off.
Influential midfielder John McGinn created space in the middle of the park on 8 minutes and the Scottish internationalist lined up a long-range strike from 25-yards but he couldn`t direct the ball on target.
The hosts continued to bombard Queens with early pressure when Martin Boyle shrugged off left-back Jordan Marshall, advanced into the box and attempted to curl the ball into the net, but Lee Robinson palmed the striker`s effort away.
Queens had their first attempt on goal on 10 minutes when on-loan winger Dom Thomas managed to create space and fired a shot inches wide of Ofir Marciano`s goal.
Thomas hugs the line
The breakthrough came on 13 minutes for Neil Lennon`s side when McGinn`s perfect free-kick found Darren McGregor at the back post and looped his header over Robinson and into the net.
The Hibs supporters` cheers turned to jeers in a matter of seconds when referee Barry Cook blew for a home free-kick when Cummings looked to be on course to double their lead immediately. The man in the middle blew his whistle when John Rankin fouled Andrew Shinnie on the half-way line and booked the Queens captain for his troubles.
The visitors could`ve levelled the contest five minutes later when Stephen Dobbie latched onto the ball in the penalty area. The striker hit a superb shot but was saved by the magnificent Marciano and the follow-up knocked out for a corner.
Dobbie sees his effort saved well by Marciano
Play was halted for a few moments when Rankin and Fraser Fyvie clashed heads but it was the hosts who looked likely to go further ahead, this time a long-range shot from on-loan Celtic defender Efe Ambrose sailed over the bar.
Ambrose enjoyed a comfortable afternoon
Naysmith`s men did create another chance moments later as Marshall`s well-time delivery landed at Joe Thomson`s feet but his shot flew wide.
Naysmith looks on as Marshall attempts to get down the line
The Easter Road outfit were on the march once more, this time Andrew Shinnie`s effort deflected out for a corner. And the hosts would double their lead.
Cummings sent in a corner and was met by McGregor again, this time with his right foot to send the home support into hysterics on 39 minutes.
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The hosts all but sealed the victory three minutes from the restart. Cummings shot was parried wide by Robinson and from the resulting corner Hibees captain David Gray rose above the Doonhamers` defence to nod in at the back post.
Robinson is beaten as Gray heads home the third
Hibs weren`t content on finishing at three and Queens had Robinson to thank, once again, for keeping out a Dylan McGeouch strike.
Queens made two substitutions on 57 minutes. Wingers Carmichael and Thomas were withdrawn for youngsters Connor McManus and Connor Murray.
The home support at this point had one eye on the Falkirk fixture, if Falkirk dropped points they would be crowned champions. And the roar from the home support rung round Easter Road, they knew they were minutes away from Championship glory.
Queens had an attempt to grab a consolation when Marshall was picked out by McManus on the left, the defender squared to Murray but the youngsters effort glanced wide.
Naysmith made his final change of the afternoon, Dale Hilson replacing Lyndon Dykes.
Hibs substitutes Alex Harris and James Keatings combined late on but the latter missed the target from four yards.
There was little action until Barry Cook blew for full-time and it was official Hibernian crowned 2016/17 Championship champions.
The defeat, coupled with Dunfermline`s 2-0 victory at Dumbarton, sees the Doonhamers drop to sixth in the league with three league matches remaining.
Queens host Dumbarton next week, with Stevie Aitken`s side looking for three points to ease their relegation worries.