Reddit reviews From the Mixed-up Files of Mrs. Basil E. Frankweiler

This one? From the Mixed-up Files of Mrs. Basil E. Frankweiler

Straight A Claudia Kincaid - "From the Mixed Up Files of Mrs. Basil E. Frankweiler"

If you don't mind fantasy, I'd recommend Tamora Pierce's newer series, the Provost's Dog trilogy, or Trickster's Choice (two books). The first one is crime-solving, while the second focuses on spycraft. I'm not a huge fan of the Beka Cooper books because it's written in first person, but I reread the Trickster ones fairly often as brain candy. You miss some of the subtler ties the first time through.

For younger audiences (and preteen protagonists), From the Mixed-up Files of Mrs. Basil E. Frankweiler and The Westing Game come to mind.

I've included Amazon links for all the suggestions:

From the Mixed-up Files of Mrs. Basil E. Frankweiler is a great book. It's about a brother and sister who decide to run away to a museum, then get caught up in a mystery.

Nancy Farmer's books are always fantastic. The Ear, The Eye, and The Arm is great to start with.

A Wrinkle in Time is the first of a trilogy. It's really, really good. I know that technically it's recommended ages 10+, but I think that a big part of it is because the characters tend to use some vocabulary-building words. If you're reading it to him, he'd be fine. Great series!

• Where the Wild Things Are
  
• Tikki Tikki Tembo
  
• The Giver
  
• From the Mixed-Up Files of Mrs. Basil E. Frankweiler
  
• The original Winnie the Pooh books
  
• Sadako and the Thousand Paper Cranes
  
• Number the Stars
  
• Are You There God? It's Me, Margaret
  
• Pigs Aplenty, Pigs Galore
  
• Brown Bear, Brown Bear, What Do You See?
  
• The Rainbow Fish
  
• The Stinky Cheeseman and Other Fairly Stupid Tales