Chompy, a carrot with superpower eyesight; Salty, a potato chip who's a bit of a slob; Candybar, a chocolate bar who plays rotten pranks; and a haunted mansion where it all comes together. 

These are the main characters in THE SECRET FORMULA, the first book in a series called Chompy and the Munchy Bunch. 

When Chompy learns about an ancient carrot formula that gives super-powered eyesight, he knows he must find it! But the journey leads Chompy and his pals to the mysterious mansion of Doc Peppa, where strange things begin to happen.