Currently reading
Inherent Vice
The Best Horror of the Year Volume Five
Locus Solus (Alma Classics)
Blackout (Newsflesh Trilogy, #3)
The Three Investigators mysteries were like a slightly more mature version of Scooby Doo. I know I read a bunch of these books when I was young, but this is the only one that I specifically remember. They were quite entertaining (though I think I preferred the Hardy Boys), but they struck me as a bit dated even as a child (I read them in the 70s).