#4.5 of 2 in Beyond the Stars: Space Opera Anthologies
#1 of 3 in Island Mystery series
#2 of 4 in Francis Pettigrew
#3 of 3 in Superintendent William Meredith
#4 of 6 in Inspector Cockrill
#17 of 5 in Inspector French
#6 of 2 in Inspector Shelley
Planned book #2 of 2 in Murder Will Follow Mystery
#1 of 2 in Movie Palace Mystery
#16 of 1 in Superintendent Anthony Slade
#10 of 5 in Inspector French
#4-5 of 29 in Chief Inspector Littlejohn