Broken Promises — J.K. Coi

Former ballerina Callie Carlisle is determined to rebuild her life with her new mechanical limbs. She's just learned to accept the enhancements that saved her from certain death when she experiences uncontrollable twinges and flashes of light that obscure her vision. Terrified of literally falling apart, she resists telling her husband. Jasper's already vowed to keep her out of harm, and she doesn't want to worry him further.

When the War Office's General Black arrives with an urgent mission--rescue the doctor who created Callie's enhancements--she has no choice but to accept. A rogue agent and former patient of the scientist believes the biomechanical modifications he received are killing him, and he's out for revenge.

Callie must reach the doctor before it's too late. But with an overprotective Jasper at her side, and her alarming symptoms getting more frequent, will she be able to hold herself together long enough to save the doctor...and herself?