Amanda Quick

Leona Hewitt retrieves a stolen family relic, a powerful crystal, from Lord Delbridge's private museum and encounters mesmerist Thaddeus Ware, whose powers do not work on her as he would wish, and the two try to evade a killer called the Midnight Monster.

Botanist Lucinda Bromley hires fellow Arcane Society member Caleb Jones to help her investigate the murder of a lord after she detects traces of a poison containing a rare species of fern that was stolen from her conservatory the previous month.