49 books • 11 series
Book #1: Happy Go Lucky
Book #2: Happy's Big Plan
Book #3: Sassy Surprise
Book #4: Saddle Up, Happy!
Book #5: Happy's Holiday
Book #1: Welcome Home!
Book #3: Runaway Pony
Book #5: A Forever Friend
Book #2: Buttercup Mystery
Book #4: Finding Luck
Book #1: A Wishbone Come True
Book #2: Wag, You're It!
Book #3: Take a Bow-Wow
Book #4: Hide and Go Fetch
Book #1: Rain Forest Relay
Book #2: Great Reef Games (Race the Wild #2)
Book #2: Great Reef Games
Book #3: Arctic Freeze