In their quest to create a stronger fighting force, the elite Black Knights unwittingly give birth to a dark force, led by a man of evil. Now the Knights must battle their counterparts to keep civilization out of harm's way. There is one man whose destiny it is to keep humanity safe, but Mason Alexander will need the help of his soulmate to accomplish his goal. Forever changed by the medical experiments he underwent, Mason needs Holly Heart to teach him how to control his special talents. Holly, a doctor who has devoted her life to genetic research, is frightened by the changes she finds in Mason, yet she is spellbound by the desire she feels for him. As Mason and Holly join forces to defeat the enemy, passion explodes, burning as hot as a raging fire. And as their souls unite, Mason fears that if Holly ever sees the beast within him she will run forever, dooming him to the dark side.

Underground Guardians—Healer Second book in the Underground Guardians series. The battle with the Arions continues. The genetically enhanced Black Knights battle to save the world from the Arions. But to harness their special powers, they need help from the outside, someone who understands how to seize the power and complexity of the mind. Marcella Alexander, a woman considered myth by most, is named the Witch Doctor for her unique healing powers. But Marcella has gone into hiding. Diego, doctor of the Knights, is picked to lead the search to find Marcella and bring her back to join them in the battle. But upon locating her, Diego makes a shocking discovery she is his mate. As they travel through Mexico, fighting their way back to the Black Knights, Diego and Marcella discover that the passion they share and their entwined soul empower them, allowing them to face any challenge their future may hold.