The Boxcar Children is a FUN seris to ENJOY! -Wiki Contributor
If your not one for mystery, but want to read some books of this seris, the easiest choice is the first! Only orphans surviving, and gaining back their grandfather along the way ( Well, not ONLY)!
The second book is their first case, if your someone who loves to learn about beginnings of a detectives' career, this is a fine choice!