Barry had linked the Chamber to the Cap's own frequency profile months ago, a deliberate design choice, using his own proven, adaptive framework as the template the raw power would follow instead of letting it hit his brain unshaped.
It still felt like drowning.
Thoughts arrived faster than he could hold them, whole cascades of understanding blooming and resolving in fractions of a second, and somewhere underneath the pain of it Barry understood, distantly, that this wasn't damage.
This was exactly what the Cap had always done, stretched past every limit he'd ever tested, his own design finally being used at the scale it was always meant for.
He didn't have time to marvel at it. The second wave was already arriving.
It came in low and steady, settling somewhere behind his sternum, and Barry felt his own instincts sharpen into something almost physical, a heightened, coiled awareness of his own body and everything around it, like a fighter's reflexes distilled down to their purest form and poured straight into his nervous system.
It wasn't strength. It wasn't speed. It was something closer to certainty, a fortress being built somewhere inside him that he couldn't see but could absolutely feel taking shape.
That's the Sage Force, he thought, or tried to, the thought arriving more as recognition than actual language, his mind too overloaded to hold a full sentence together.
The third wave hit harder, and this one he felt in his body first, a sudden, violent surge of raw physical power that made every muscle lock rigid at once, his back arching against the platform beneath him as something ancient and immense settled into his bones.
Alongside it, quieter but unmistakable, he felt his entire physiology shifting, cell by cell, an enhancement layering itself directly onto the strength pouring in beside it, the two forces arriving so close together they felt like a single overwhelming wave instead of two.
Somewhere in the middle of that wave, something strange happened that Barry couldn't fully process even as it occurred.
For one disorienting instant, it felt like there were two of him.
Not beside him. Not separate. Just a flickering, doubled sense of his own body occupying more space than it should have been able to, gone again almost before he could register it, an ability trying to take root and not quite managing to hold on yet.
He had no way to know, in the middle of everything else tearing through him, whether that meant it had failed or simply hadn't finished arriving.
The fourth wave was different from everything before it, cooler somehow, slower, moving through him like still water instead of fire.
Barry felt something in his chest steady in response to it, a strange, deep calm settling into the center of the chaos, like the eye of a storm carved out specifically to keep him alive through everything happening around it.
'Still Force,' he thought, and this time the thought held together long enough to mean something.
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