Super Spy Sisters

Rebecca and Olivia are sisters who go to primary school in the day but who undertake 'Super Spy Sister' missions between tea and bathtime. They have a secret time and space portal under the duvet, and a helpful brother called Kearen who bashes wood and nails and makes spaceships, and things. In this volume of their adventures, they battle stinky Little Green Men (L.G.M) on the Twitter Satellite, to save the world!