"Blue's Clues" provides another tale to help ease childhood fears in "Green Puppy Goes to the Dentist," The power of roleplay is again demonstrated in this book when Blue becomes "Dr. Blue" -- a certified pretend dentist who shows Green Puppy just what going to … The character is friends with each one of his classmates. He enjoys building towers and knocking them down after they are completed. Green attends preschool in Miss Marigold's class, the only known class in the school building. He enjoys building towers and knocking them down after they are completed.

He is one of Blue's friends from school. He is one of Blue's friends from school. "Blue's Clues" provides another tale to help ease childhood fears in "Green Puppy Goes to the Dentist," The power of roleplay is again demonstrated in this book when Blue becomes "Dr. Blue" -- a certified pretend dentist who shows Green Puppy just what going to … Green Puppy is an emerald-coloured puppy who loves to knock over block towers. Green attends preschool in Miss Marigold's class, the only known class in the school building. The character is friends with each one of his classmates. Green Puppy is an emerald-coloured puppy who loves to knock over block towers.