The Undetectables series - The Undead Complex

A witty, witchy fantasy murder mystery packed with ancient magic and fiendish puzzles. Mallory, Diana, Cornelia and Theodore are hired to solve a murder on a TV shoot by the victim herself. Perfect for fans of supernatural mysteries and cosy crime by authors such as Ben Aaronovitch, Josiah Bancroft and Tammie Painter.
Five months after the events of The Undetectables, business is booming – but finding cases that call for magical forensic investigators is not. So when Diana's ex, Taylor, asks them to solve a murder – her own – Diana, Mallory and Cornelia can't say no.
Called to investigate the set of Undead Complex, Diana re-enters the world of TV-show prop making – even in death, the show must go on. Even the appearance of a genuine-article Francine Leon dollhouse can't make up for the fact she's being pulled down a path of crime-solving she maybe doesn't want to walk forever.
Meanwhile, Theodore's coming apart at the seams – literally – in the aftermath of their last case, and Mallory is running out of ways to help him. Especially as he seems to be keeping secrets from her.
As the clues – and the bodies – keep piling up, each one making less and less sense, The Undetectables find themselves in a new race against the clock to find out what, exactly, the killer is up to – before they strike again...