ænd ɹˈɔs kˈæsəl mˈɜːdɚz, ðə fˈoːɹθ bˈʊk ɪnðə mˈɪstɚɹi sˈɪɹiz, fˈiːldənz fˈɪftiːnθ bˈʊk hæd ɐn ɑːktˈoʊbɚ tˈuː θˈaʊzənd sˈɪkstiːn ɹᵻlˈiːs.
And Ross Castle Murders, the fourth book in the mystery series, Fielden's fifteenth book had an October 2016 release.