Someone stole Otto's birthday! To get his presents back, Otto needs to solve a slew of puzzles—but his greatest challenge comes at his journey's end. Kirkus Reviews declares this book "a snappy follow-up to Otto's Orange Day."

"Someone stole Otto's birthday! When Otto the cat and his robot sidekick Toot follow the crook, they discover a topsy-turvy world where rats chase cats and people wear underpants over their clothes"--

When Otto and his robot sidekick, Toot, follow the crook, they discover a topsy-turvy world where rats chase cats and people wear underpants over their clothes. To get his presents back, Otto needs to solve a slew of backwards puzzles — but his greatest challenge comes at the journey’s very end. On this special day, will Otto discover something even better than cake or gifts?

Someone stole Otto's birthday! When Otto and his robot sidekick, Toot, follow the crook, they discover a topsy-turvy world where rats chase cats and people wear underpants over their clothes. To get his presents back, Otto needs to solve a slew of b

When Otto the Cat meets a magical genie, he knows just what to wish for: he makes the whole world orange! At first, this new, bright world seems like a lot of fun, but when his mom serves orange spinach for lunch, Otto realizes that his favorite color isn’t the best color for everything.

When time goes backwards, granting six-year-old Otto his wish that his attention-stealing baby sister was never born, it keeps going backwards, and Otto finds himself getting younger and younger.

Brother and sister Mona and Joey are always fighting, but when they inherit a suit and special powers from a superhero who is going into retirement, their inability to get along hampers their ability to fight crime.