The Diplomacy of the Knife (Four of Mercies, #2)

Petre Mercy's had a rough time since he rode home on a cyborg horse. He's lost a hand that's been replaced with a mess of steel and piano string, broke his thyroid-powered sword, and helped ignite a civil war that's engulfed the countryside.

His sister, The Queen, has ordered him to root out any traitors in Mercy House. But Petre can hardly ferret out the truth from his siblings, let alone a vast network of spies with counterplots. And every day more turncoats move against him.

If he has any hope of putting down this uprising, he'll have to work with a sister he's still learning to trust. But his enemies are one step ahead of him at all times. And they're hiding in the last place he'd think to look.

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