Just to say, I am still really enjoying this one.
No silly red herrings or super-intelligent detectives following up incredible clues, no weird chases or witnesses who decide that not telling the police all they know and turning to detection themselves is a better option than....you know...telling the police.
Yes, I am rather enjoying this for its simplicity...and for the characters. I like Brett, he reminds me of Tey's Inspector Grant for some reason. Maybe it's because his wife is involved in the arts (she's an opera singer) much like Grant's closest friend, Marta, is an actress.