Scorched By the Dragon by Emily Oscar

Slow burns scorch the deepest…

It’s the cryptozoology find of all time. The one that can take her from niche TV show production to documentary filmmaker before she can yell, “I found dragons!”
Only Mildred Keene is sworn to secrecy, under threat of having every memory of dragons and magic altered. Her biggest problem, however, is there’s already a hole in her memory, and what was taken out may be the key to saving Black Moon Peak’s favorite dragon.
Lennox MacBrayne has two skills: building fortresses and defending them. Running off the high-spirted cryptid hunter was his preferred strategy, but now that her cousin is mated to his older brother, he has a worse vulnerability to defend – his heart.
Good thing she wants nothing to do with the man beneath his gruff exterior, right? Restoring her memory could free his younger brother, so Lennox is willing to keep the potential fire witch occupied. Only the longer he keeps an eye on her, the more he longs to put his hands on her as well.
When his loneliness piques Mildred’s dogged curiosity, Lennox has to execute the most precise battle of advance and retreat, reveal and obscure, in his long life. Because it isn’t just his heart at stake. What she remembers could spark a war.
As old enemies draw closer and ancient powers are reignited, Dred discovers the strongest fortress Lennox ever built, the one he guards most fiercely, is the one around his battered warrior’s heart, only time is running out to save it, and his brother, before evil comes to Black Moon Peak.