Daddy Boom Books in Order
Part ofGrace Green Books in OrderSee the Daddy Boom series in order, where Grace Green's Brannigan's Baby fits, plus quick summaries, background, and easy start-here notes.
Last updated: July 11, 2026
As an Amazon Associate, we earn from qualifying purchases (at no extra cost to you).
Daddy Boom books in publication order
2 books
Brannigan's Baby
by Grace Green
1997
Luke Brannigan badly needs help with his baby son, and Whitney McKenzie is the one woman he trusts to step in. She knows his heartbreaker reputation well, which makes falling for the household even more dangerous.
The Baby Project
by Grace Green
2000
Mallory has given up everything to raise her orphaned nephew, and she has no intention of letting Jordan Caine take him away. But Jordan has a real claim on baby Matthew, and their custody fight quickly turns deeply personal.
Daddy Boom books in chronological order
Series background & context
Daddy Boom takes the baby-centered romance setup and tilts it toward men who are suddenly, sometimes awkwardly, out of their depth. This multi-author Harlequin line is full of bachelors, reluctant single fathers, and confident heroes who discover that handling an infant is very different from handling business, charm, or a carefully controlled life.
That is the fun of the series. A man who can run a company, a ranch, or a room can still be helpless at two in the morning with a crying baby. He may need bottles, patience, childcare, or simply another adult who knows what she is doing. That is where the heroine often steps in. She is usually practical, wary, and smart enough to know that helping a man with a baby can lead to emotional trouble very quickly.
Babies do not care whether a man is ready.
Even with that playful premise, these books are not only about cute chaos. They are about vulnerability. Fatherhood changes the rhythm of the romance because the hero cannot pretend his choices affect only him anymore. The strongest entries balance warmth and comedy with a genuine sense that a child has raised the stakes and made honesty unavoidable.
Grace Green is right at the front of this series with Brannigan's Baby. Luke Brannigan needs help raising his young son Troy, and Whitney McKenzie is the woman he turns to. She knows his heartbreaker reputation, so the story gets its tension from two directions at once. There is the practical work of caring for a baby, and there is the much trickier question of whether Whitney can trust Luke with anything larger than that.
That combination is the series in miniature.
Because Daddy Boom is a shared line rather than one long continuing story, every book can be read on its own. What carries across the series is the mood. Expect warm domestic scenes, reluctant teamwork, and heroes learning that being needed is not the same thing as being admired. That shift is where many of the best emotional moments live.
If you like romances built around ready-made families, sudden fatherhood, and the quiet comedy of grown adults being remade by a child, Daddy Boom does exactly what the title promises. It is breezy on the surface, but there is real emotional weight underneath.
Edited by
Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.
Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.




















Comments
Did we miss something? Have feedback?
Help us improve this page by sharing your thoughts