Ral - Accumulator's function

          Harith scowled and jerked his head, and the two thugs came forward. Ral spread his hands, as though bidding them to wait. On his pack, the thing he'd spent the last month building, a jury-rigged mess of wire and steel plates, whirred jerkily to life. Power crackled through him, the kind of energy he'd normally only get by standing in a thunderstorm. He grinned at Harith's hired muscle as he closed his hands into fists, and white sparks crawled out along his fingers.

          "I have nothing left to learn here," he said.

***

The Gathering Storm, Chapter 11