Above the train at the end of the first domino track
It's on the u on the page A is for
The blue thread in the I Spy School Days book can be found on the blue baseball cap on the bottom right corner of the "Art Class" spread.
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On top of the red train
It's in the nest with the shell in it
it is on the big yellow B above one of the balloons.
In the book "Spy School Days," the squash game occurs when Ben is training at the Espionage Academy. The squash court is located on the school grounds, and Ben plays against Alexander Hale, the school's top athlete and bully. The squash game is used to showcase Ben's athleticism and competitiveness.
Spy School was created in 2008.
On the block beside the bell on page 18
On the top of page 22 above the car.
It is right under the giant r