Servants of fate series

Boston paramedic Cacy Ferry attempts to juggle her life-saving duties in a society on the verge of environmental collapse with her secret job ferrying the deceased to the afterlife. When Cacy's father Charon is killed, she must rely on the help of her handsome partner Eli to track down Charon's killer.

When their world is thrown into chaos, Aislin Ferry and Jason Moros must find a way to work together in order to save all they love even if it means total surrender.

Galena Margolis' dream is to invent a vaccine that could save millions of lives, but she has enemies that want to stop her. The Ferry empire will protect her, and Declan Ferry, the black sheep, politics-hating member of the family, signs up as her protector. The two fall in love, and though they both know it is dangerous, the risk may be worth it--if they can find their way together and make the vaccine.