Niv - vs. Bolas' fire breath

          Niv wheeled around in the air, faster than Bolas could ever have managed, and dove again at his opponent. This time Bolas did not step aside, but met Niv's forepaws with his own hands. Niv's momentum drove them down and into a row of elegant townhouses, brick and stone shattering like glass around them.

          They were locked together, hand in hand. Bolas opened his mouth wide and blasted a stream of flame, and Niv-Mizzet countered with his own, the two gushing curtains of fire meeting between them in a spectacular explosion. The wave of heat washed over both of them, scorching Niv's fins. He shifted his weight, letting one arm drop, then folded himself over and kicked Bolas with his hind legs, sending the elder dragon into the air. Bolas's wings shot out to steady him as Niv-Mizzet got airborne again.

***

The Gathering Storm, Chapter 18