Boneseeker

Arabella Holmes, daughter of Sherlock, longs to return to her work in abnormal science but has been temporarily reassigned as a botanist. Alongside Henry Watson, she becomes embroiled in the mysterious disappearance of five girls from locked rooms, uncovering danger and secrets as they investigate. Their adventure leads them undercover and into dangerous territories, including a lunatic asylum, as they race against time to find missing persons and a stolen vial of poison.