Penny Clarke

Hippos (Scary Creatures)

Of the City (Scary Creatures)

Scary Creatures of the City (Scary Creatures) (Scary Creatures S.)

Of the Wetlands (Scary Creatures)

Of the Mountains (Scary Creatures)

Scary Creatures of the Mountains (Scary Creatures) (Scary Creatures S.)

Scary Creatures of the Wetlands (Scary Creatures) (Scary Creatures S.)

The Story of Mummies (Adventures in the Real World)

Doomed Ships (Adventures in the Real World)

Scary Creatures of the Arctic (Scary Creatures) (Scary Creatures S.)

Scary Creatures of the Rain Forest (Scary Creatures)

Scary Creatures of the Rainforest (Scary Creatures S.)

Lineas del Tiempo (Poder Mental)

The Story of Explorers and Exploration (Adventures in the Real World)

The Story of the Exploration of Space (Adventures in the Real World)

Brain Power: Flight, from Icarus to Spaceship One (Brain Power)

Time Lines Irish & World History Dates

Brain Power: Transport (Brain Power) (Brain Power S.)

Brain Power: World History Time Lines (Brain Power)

Flight (Brain Power S.)

Life in the Tundra (What on Earth S.) (What on Earth?)

Timelines (Brain Power S.)

Wolves (Scary Creatures)

Snakes Alive (Scary Creatures)