4.24 avg rating — 3,128,929 ratings

"Many of the others were (I thought) too old, but this is accessible for all ages"

3.93 avg rating — 5,517 ratings

"Decent series for younger readers that also helps them develop some problem-solving skills"

really liked it 4.00 avg rating — 508,897 ratings

"Too neglected, thanks to the movie, but wonderful fantasy"

4.02 avg rating — 567,659 ratings

"The "suspense" is fun, but sometimes the definitions will confuse more than help"

3.97 avg rating — 138 ratings

"NF for the younger set; really helps them learn/define passions"