Michael Underwood 
The Injudicious Judge [EPUB ebook] 

Her Honour Judge Celia Kilby does not suffer fools gladly. Criminals, counsel and clerks all feel the lash of her tongue, and all know her bark is as vicious as her bite. So when she receives an anonymous letter threatening her life, no one is particularly surprised. But the police investigation fails to substantiate the threat; and then Judge Kilby is found murdered in her own garden and surprising aspects of her private life come to light, including an illegitimate son. Suspects and motives abound, but means and opportunity remain elusive – until Rosa Epton accepts a client who confesses to being the anonymous letter writer. But is her client the killer?