Book 41: Meltdown

Synopsis:
When a metahuman with radiological powers goes off in LA, Sienna Nealon is summoned to do what she does best. But Sienna's a little busy these days; haunted by demons, broken by years of struggle, she's not what she used to be. Facing what may be her greatest danger, will Sienna be able to prevail over herself - and her newest enemy - in time to save Los Angeles?