Lilith's Puppet (From The Shadows Book 1)
https://www.amazon.com/dp/B076M7TR72/
The year is 1810, five children stumble onto an ancient, terrifying secret that will affect the rest of their lives. While playing near an old oak at the edge of the forest, Henry, Howard, Rachel, Phillip and Thalia come across an age-old artefact that will unleash an unimaginable evil that will follow them to adulthood.