Children 5-8 sci-fi books

Vampires and Oz

The Adventures of Ook and Gluk, Kung-fu Cavemen from the Future

The Bronze Trumpeter

Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot

Beetle Blast

Sylvie & Bruno

A Splash of Forever

The BFG

The Adventures of Captain Underpants

The Mountains of the Moon

The Thirteenth Mystery

Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn

Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus

Sweet Secrets

Ricky Ricotta's Mighty Robot vs. The Jurassic Jackrabbits from Jupiter

The Wishing-Chair Again

Chocolate Dreams

Ricky Ricotta's Mighty Robot vs. The Mecha-Monkeys from Mars

Dorothy of Oz

Ricky Ricotta's Mighty Robot vs. The Voodoo Vultures from Venus

Make-Believe

Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury

Ricky Ricotta's Giant Robot

Ricky Ricotta's Mighty Robot

The Blue Hills

The Burning

Charlie's Web

Monday with a Mad Genius

The Masked Ball

Under Water