Heart of Iron
by Becca Andre
Captain Briar Rose has eluded the law, outwitted the soulless, and defeated a fully devolved ferromancer. Now she faces her biggest challenge yet. She must convince Esme, one of the females of the ferromancer race, to teach her how to use her own ferra magic. But nothing in the ferromancer world ever goes as Briar plans, and dealing with Esme is no exception.