But at terrible cost. At the edge of the solar system, the grandson of the emperor he murdered dreams of revenge.

In his hidden fortress in the oceans of Venus, the Ash Lord lies in wait, plotting to crush the newborn democracy. And, at home, a young Red girl who's lost everything to the Rising questions whether freedom was just another Gold lie. In a fearsome new world where Obsidian pirates roam the Belt, famine and genocide ravage Mars, and crime lords terrorise Luna, it's time for Darrow and a cast of new characters from across the solar system to face down the chaos that revolution has unleashed.

'Another sizzling space epic to entice, excite and tease. 5 STARS' - Starburst

'Fascinating . . .This is one you absolutely will have to read' The BiblioSanctum

'Iron Gold offers us both a continuation of the story Brown has been telling for years right alongside an eye-opening widening of his universe, as though we're watching it all through an exquisitely calibrated telescope that can slide on perfect bearings from one side of the solar system to the other without the slightest blur . . .NPR Books