Oh no! Granny's had her brain sucked out by an evil lunatic! Is there anyone brave enough to stop him (and hopefully get it back)?

Lester Smythe has a black heart (which matches his underwear). He’s invented a dangerous brain-sucking machine that steals the goodness from its victims. Despite the best, or is that worst, efforts of his imbecilic henchmen, Lester is ridding the world of all human kindness, one sucker at a time. What a headache! But... Lester didn’t count on thirteen-year-old Callum McCullock and his two best friends, Sophie and Jinx. The crime-fighting trio vow to destroy the brain sucker. And nothing will stand in their way. This is a menacing yet hilarious adventure to outwit a dastardly genius.