Hidden Away. Cantwell Quartet, #3

Brothers, though not by blood, must face the dangers of the past to win the women of their dreams. Most people consider Dr. Isaac Brandt to be old-fashioned, stodgy, and prone to lecturing. Certainly, Delilah Fitzpatrick does. Isaac doesn't know how to get on her good side, to show her that he could be the man for her. His friends try to push the two of them together, but Delilah wants nothing to do with him that doesn't involve work. Lilah Fitzpatrick is intimidated by Isaac's genius.
She admires his work and is excited to be collaborating with him on a graphic novel series, but she keeps her emotional distance, preventing even the shallowest of friendships. She has enough on her plate, and dating is at the bottom of a long list of priorities. When Isaac declares he wants a relationship with Lilah, she doesn't know what to think. What she does know is that he would be better off with a woman as smart as he is, and she is not that woman. But fate steps in and hidden dangers from Isaac's past find him and threaten his chance at happiness.
And puts Delilah in the crosshairs of a killer. Isaac has no choice but to tell his friends the secrets he holds, secrets he's held for fifteen years, and take steps to keep Delilah safe. Even if that means sacrificing his budding relationship with her. Note from author: "This is the third book in the Cantwell Quartet four-book series, approximately 53, 000 words. Please note this is an open-door romance.
I hope you enjoy." - Lizzy Castle.