Twelve-year-old Al Chaudhury discovers his late dad's time machine and travels back to 1984 with his pet hamster to prevent the go-kart accident that killed his father.

Twelve-year-old Ethel Leatherhead only meant to cure her acne, not turn herself invisible. But that's exactly what happens when she combines herbs bought on the Internet with time spent in a secondhand tanning bed. At first it's terrifying to be invisible . . . and then it's fun . . . but when the effect doesn't wear off one day, Ethel is thrown into a heart-stopping adventure. With her friend Boydy by her side, Ethel struggles to conceal her invisibility,...