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Callahan Billionaires — by Tracy Lorraine
The Callahan Billionaires Series in Order (3 Books)
| Order | Book | Date | Rating |
|---|---|---|---|
| 1 | By His Vow | Apr-2024 | 0 |
| 2 | By His Rule | Aug-2024 | 0 |
| 3 | By His Play | Feb-2025 | 0 |
Frequently Asked Questions (FAQ)
There are 3 books in the Callahan Billionaires series.
The Callahan Billionaires series does not have a new book coming out soon. The latest book, By His Play (Book 3), was published in February 2025.
The first book in the Callahan Billionaires series, By His Vow, was published in April 2024.
The Callahan Billionaires series primarily falls into the Contemporary Romance genre.