Haven't read this in nearly a decade (scary thought, that) and remember the series as being really great, might give it another go and who cares if it's "too young" - if it's good, it's good!
This is one of my favorite middle grade mystery series, and I kinda think it doesn’t get talked about enough. I don’t know WHY, either, because they’re really good books. The writing: excellent. The characters: layered and complex and amazing. The mysteries: not super complicated, but still interest...