The Humm

Pip, Humm, and Luna Save the Silken Sky (The Friendship Adventures of Pip Humm!)

Pip, Humm, and the Silent Guest (The Friendship Adventures of Pip Humm!)

Pip, Humm, and the Singing Stones: 14 (The Friendship Adventures of Pip Humm!)

Pip, Humm, and the Little Lights: 4 (The Friendship Adventures of Pip Humm!)