My checklist

What I read finished:
Sammy Keyes and the hotel thief
Sammy Keyes and the Sisters of mercy
Sammy Keyes and the runaway elf
Sammy Keyes and the hollywood mummy
Sammy Keyes and the search for snake eyes
Sammy Keyes and the art of deception
Sammy Keyes and the psycho kitty queen
Sammy Keyes and the dead giveaway

What I haven't read:
Sammy Keyes and the skeleton man
Sammy Keyes and the curse of moustache mary
Sammy Keyes and the wild things