Bina and the Darn Curse - Thomas Anna K.

Bina might have bitten off more than she can chew - her attempt of prolonging Ben Martin's life has tangled her up with the curse for good. In addition, her meddling has alerted old fiends. Suddenly, not only her life is in peril, but also Cianáns - and that when she just wanted to get her agency up and running.
It needs the help of the ghosts of her ancestors and some good old chaos to finally deal with this curse. But Bina wouldn't be Bina if she shied away from a challenge!

Bina and the Darn Curse is the sixth book of the series "Of Elves and Wolves" and the second of the Bina arc.
Books should be read in order.