Hilda and the Hidden People by Stephen Davies
Hilda is a young girl who lives in a valley filled with magical creatures like trolls, elves and giants. She gets pulled into an adventure when she discovers her house, that she thought was just surrounded by meadow, is actually surrounded by invisible elves who want her and her mom to leave the valley. Along with her fox deer friend Twig she must face the elf king and in doing so create peace in her beloved valley. The illustrations are super fun and this is a great read-aloud for the whole family!