I. Analogous Realization

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-

"WHAAAMM!"

Ed felt the impact spread like a cobweb throughout his body when Greed hurled him against the wall. His battle form was indeed formidable, and Ed felt his consciousness deserting him at this crucial moment…

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-

"You're it!" Al bounced out of nowhere and touched Ed in the back.

"Grrr you're gonna get it this time..." smirked Ed as he swerved and dashed in the direction where Al ran off. They both knew these stone passages like they knew alchemy. Even though the twists and turns were imprinted in their head, the acoustics could still play tricks on them.

That's strange, I swear he ran this way… thought Ed as Al's footsteps seemed to be fading fast. Let me try this way.

"Yoohoo brother I'm here!" Al's head popped out from the floor above Ed. He was grinning madly at making Ed running in circles.

"Why you little…" Ed jumped and tried to poke Al from below, but alas he was too… short. Nonetheless, he alchemized a rocket jump and in a flash he was at the very spot where Al was… just a second ago…

"Yo Al where are you?" Ed shouted and heard his own echo reverberating in his head.

"Brother, you of all people should know Heisenberg's Uncertainty Principle." Al's voice floated from behind a wall. He seemed to be everywhere at once. Ed was starting to get freaked out now.

"What? What does that have to do with anything?" Ed whirled around in confusion.

"You can't figure out my location and my speed at the same time!" Al giggled. "And you're still it, big brother."

"Wait! Wait…" Ed paused suddenly. "Not at the same time… I see… that's it!"

His eyes snapped open.

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-

"Dead?" wondered Greed as he observed the battered body.

"Peh." Ed glared and blew a bloody raspberry. "You wish." And I just found your weak spot you bastard.