I SPY Ultimate Collection combines rhyme and riddle with selections from the Classic and Challengers series!
Wish to progress through the books from easiest to most challenging? Or start from the theme you most fancy? This collection can be enjoyed either way.
All 10 books come with the timeless pictures and photofraphs children and parents alike have come to love throughout the years.

The Box Set Includes 10 books:

I SPY Classics 6 books
I SPY
I SPY Fantasy
I SPY Fun House
I SPY School Days
I SPY Mystery
I SPY Treasure hunt
I SPY Challengers 4 books
I SPY Extreme Challenger
I SPY Super Challenger
I SPY Year-Round Challenger
I SPY Ultimate Challenger