The Magic Keepers, By E. L. Williams

Two librarians, one ancient prophecy, and a time-bending race to change history.
 
As the keeper of the Pont Nefoedd Library of Magical Texts, Lydia knows her chosen profession is fraught with danger. When she discovers a book that could change the world forever, her elation is short-lived. Just minutes later, she’s running for her life.

When an ancient spell book tries to help, Lydia and apprentice Rose are catapulted through a rip in time, landing in 1841 amidst a community of powerful Victorian witches. But where there are witches, there are witch finders – and Silas Thorne has dedicated his life to eradicating magic in all its forms.

While Lydia searches for a way home to 1960, desperate to get the Book of Prophecy to safety, Rose discovers that, sometimes, love can defy even time itself. Will Lydia and Rose change history – or be lost to it?