After the colors are found, and you're in the clubhouse, go up to the bookcase and Hamtaro will say "These are Maxwell's books. I have no idea what they say" Push A and then Hamtaro will say "Huh? There's a fun-looking illustrated book". Push A and the book will show the first image! Push B to go through all the images and music will play with each image.

Sunny Peak

Flower Ranch

Clover Elementary

Ticky Ticky Park

Tip Top Fair

Sparkle Coast

Hamstarr Manor