Invisible Inc. by Jim Field

Chaos, wizardry and a gang of kind-of ghosts, in this hilarious adventure from bestselling author, Steve Cole. Noah?_Ts mum?_Ts new invention can zap ANYTHING into a ghost of its former self.A?It?_Ts still there, but you can?_Tt see it. You can?_Tt touch it. When the sinister ?_~Seerblight Solutions?_T steal her invention, Noah is zapped ?_"A?and finds he?_Ts not the first to have been turned ?_~invisible?_T through the ages. With all humankind in terrible danger, Earth?_Ts last line is defence is one you?_Tve never seen or heard of: Invisible Inc. A medieval knight. A Victorian inventor. A poetic pony. And an ordinary boy. Saving the world? THEY?_TLL SEE TO IT!
Binding: Paperback / softback