Christmas Past by Christine Pope

Time travel is tricky…especially when there’s a wedding in your future.

Devynn Rowe and Seth McAllister have found their happily ever after in the 21st century, but as their Christmas wedding approaches, Seth can’t shake his melancholy. When he vanished from 1926, his parents were left believing their son had died in a mining accident. The guilt is eating him alive.
Devynn has a crazy idea: what if they could go back to 1926 and give Seth’s family the Christmas gift of knowing he’s alive and well? Her time-traveling magic has been unpredictable at best, but she’s been secretly practicing. How hard could one little trip to the past be?
Famous last words.
When Devynn’s magic goes haywire, they find themselves ping-ponging through the decades, landing everywhere except where — and when — they’re supposed to be. Stranded in the wrong timeline with a wedding to get back to, they’ll need help from an old friend and a new understanding of what “home” really means.
After all, the greatest magic isn’t about controlling time — it’s about choosing who you want to spend it with.