There's a break, first - the house elves can bring people lunch, if they don't actually want to go to the Hall (which most don't seem to). The two duelists don't eat much - mostly just a small, light meal, focusing more on getting some drink into themselves.
And then the fights resume with the 'fifth year' bout. This one gets them into notably powerful spells, more and more clearly focused on actual proper combat. Their movements are quick, intense, and neither's laughing, now (though Professor Reynolds has a light smile on her lips). They're actually jumping around somewhat less - the spells are coming faster, in clusters that make simply moving less of a good bet, and Professor Reynolds especially is making good use of counter spells. The spells that hit the ground - rather than being dismissed out of existence - cause the stone to explode or catch on fire, sometimes forcing the duelists to move a bit. (Each time, the relative advantage shifts.) Still, it's over relatively quickly - Professor Flitwick actually gets Professor Reynolds with a second year spell, ripping her wand from her hand. She laughs and concedes.
The sixth year bout - they stop calling out spell names entirely, the majority of the fight proceeding in an eerie silence punctuated only by the shuffle of their feet, the occasional dull impact. Professor Reynolds transfigures a series of stones into a long snake with scales like diamond, whip fast - Professor Flitwick shatters it into crystal shards, and with a wave of his wand they all fly unerringly at Professor Reynolds, who conjures a shimmering barrier over herself. The fight ends with an explosion under Flitwick's feet, sending him flying - he recovers, turning his fall into a roll, but Professor Reynolds hits him again - with the Knockback Jinx, cast far more quickly and smoothly than before, her wand flicking out like a snake's tongue - and he falls out of the arena.
There's a pause while Madam Pomfrey checks him for injury, healing a few bruises and some ringing ears, and then the seventh year bout can begin.
This one has both duelists moving fast, protecting themselves with quick flicks of their wands - forming shields or simply deflecting spells somewhat more violent than the usual condensed ray. Most of their spells snap like lightning, many actually showing the ability to turn and seek their target, making dodging nearly meaningless. Neither Professor is smiling, their gazes intensely on each other, spells exchanged in silence under the repetitive boom of the spells. Professor Flitwick responds to one explosion of stone and dust by flying up and hovering - briefly, still, but for longer and under far more control than he had when levitating his shoes - and Professor Reynolds surrounds him with fireworks. He makes the stones under her feet buckle and ripple; she turns them into vicious things of teeth and claws that surge for him. They seem nearly evenly matched, here, their mastery of these spells equal - until by sheer luck Professor Reynolds gets through a gap in Professor Flitwick's guard, forcing his wand arm to fall limp. He switches his wand nearly seamlessly to his other hand - but he's on his back foot, now, and Professor Reynolds overwhelms him with a barrage of spells over the next minute. He falls, limbs locked together, and the matched is called.
The eighth -
Before the eighth, Professor McGonagall calmly taps a few stones, creating a faint shimmer in the air between the entranced spectators and the duelists. And then it can begin.
These spells have almost nothing in common with what they've exchanged before - Professor Flitwick sends blasts of lightning from his wand, Professor Reynolds swirls between tiger and human form, one of Professor Flitwick's concussive spells is deflected and transforms into an explosion as Professor Reynolds knocks it aside -
Professor Reynolds is back to laughing as she trades spells with her colleague, in the moments she has enough air to breathe. She's clearly not using a wand for all of her magic, summoning barriers and even casting counter-spells in tiger form or simultaneous to the offensive spells she's sending streaming at Professor Flitwick. He apparently lacks the same talent, giving her a distinct edge - but he's good, his spells powerful, each offense coming faster than hers can.
And then Professor Reynolds spins out of tiger form after one leaping dodge, raises her wand high -
And fire streams from it, taking the form of large birds, great cats, snarling wolves - rushing to fill the arena -
("She's bloody mad - " one seventh year shouts, voice strangled, a few seats behind Anathema and Ellie.)
Professor Flitwick gestures, creating a ring of black flame around himself that surges to hold off Professor Reynolds' fire animals. And then he responds, sending blasts of darkness and smoke racing through the flames - destroying many - and apparently trying to find Professor Reynolds herself, who seems to need to keep her wand connected to the fire.
Barely visible to the onlookers - surely not visible to Professor Flitwick, with all the smoke and dust in the way - several of the wolves dive down into the stone, melting it...
And moments later burst from under Professor Flitwick's feet -
He jumps, and Professor Reynolds yanks her wand back, and all the flame winks out, leaving the arena still.
There's a few moments of stunned silence as Professor Flitwick lands - deftly avoiding the holes in the floor - and dismisses his own black fire.
He chuckles, though, holding a hand to his heart. "I think you won that," he says, voice slightly cheerful despite its shaking. "Though perhaps next time a bit less of a heart attack with the Fiendfyre?"
She laughs. "Well, you surprised me with Devil's Protection, so I had to improvise," she teases.