That said, here are the most likely possibilities for what you're looking for:
"Lexi Luna" may be a character in an indie or self-published romance/erotica novel (common on platforms like Kindle Unlimited), though no major bestseller currently features this name as a title. book lexi luna
With a steady hand, Lexi closed the book. The hum faded, the light dimmed, and the room returned to its quiet stillness. That said, here are the most likely possibilities
She reached out, her fingers trembling slightly as they brushed the cover. The moment skin met leather, the silence of the room shattered. A low hum resonated from the pages, a chord of music that sounded like a memory of a lullaby she had never heard. the light dimmed