10 books • 1 series
100 MATH ACTIVITIES KIDS NEED TO DO BY 2nd GRADE
Foul Play! (Mad Science, #8)
Out of This World! (Mad Science, #7)
Clue Me In! (Mad Science, #5)
Watch Out! the Daring Disasters of Ethan Flask (Mad Science, #4)
Watch Out! (Mad Science, #4)
What a Blast! (Mad Science, #1)
What a Blast! the Explosive Escapades of Ethan (Mad Science, #1)
Eureka: The Explosive Escapades of Ethan Flask and Professor Von Offel (Mad Science, #1)
Mucus Attack (Mad Science, #3)