Bubble in the Bathtub (Doctor Proctor's Fart Powder). This item is unavailable.Bubble in the Bathtub (Doctor Proctor's Fart Powder)

Doctor Proctor and the kids (and the fart powder!) are back with a time traveling bathtub and a very special mission! It’s another fart-tastic adventure.

The Fart Powder was such a successful invention that Doctor Proctor, Nilly, and Lisa couldn’t stop there. Next up: a time-travelling bathtub. You just hop in, lather up the Time Soap, and wish for where you’d like to go. Doctor Proctor has plans for this new invention. You see, he lost his true love years ago, when Juliette Margarine married an evil count. The good Doctor has never quite gotten over this, and he's going back to change it. But when things go wrong, it's up to Nilly and Lisa to travel back in time to right all wrongs and reunite the two lovebirds. Nothing is quite so simple in a Jo Nesbo book. Enter a herd of hippos, a scheming assistant, and Time Soap that keeps going awry, sending Nilly and Lisa to the storming of the Bastille! Fortunately, as in every Jo Nesbo book, the Fart Powder solves everything.

Jo Nesbø is the most successful Norwegian author of all time. He has sold more than 19 million books, which are published in forty-seven different languages globally, and he is widely recognized as one of Europe’s foremost crime writers. The author of crime fiction and short stories, the Doctor Proctor adventures are his first children’s books.

Mike Lowery is an author and bestselling illustrator who has worked on more than eighty books for children, including the Mac B., Kid Spy series with Mac Barnett, They Call Me No Sam! with Drew Daywalt, and more. He is also the creator of the Everything Awesome and Bug Scouts books. He lives in Decatur, Georgia, with his wife and kids, and his daily sketchbook can be seen at MikeLowery.com.