Mariah Keeps Cool 4-1

 Mariah Keeps Cool 4-1

As Mariah Keeps Cool begins, Mariah and her friends, the Friendly Five, are busy getting ready for a big swim meet with their coach and friend, Brandon. They are also planning a surprise birthday party for Mariah's sister, Lynn. Because Lynn is a volunteer at a homeless shelter, Mariah asks the guests to bring food and clothing donations instead of gifts.

Mariah is also growing closer to her half-sister, Denise, who is helping them make paper flowers and other party decorations at Brandon's house.

When Lynn shows up at Brandon's house unexpectedly, the girls have to think fast. Denise hides and the Friendly Five hurry to Bandon's pool and pretend that they are practicing for the swim meet. Brandon tells Lynn that she needs to leave so they can practice.

On the day of Lynn's birthday, Mariah needs to get Lynn out of the house. But Lynn just wants to stay in bed all day. Her mom finally gets out of bed by offering to take her to a bookstore. As soon as they leave, Mariah calls the guests to come over. By the afternoon, everyone is in the backyard decorating and setting up.

Mariah tells all the guests to be quiet as her mother and Lynn pull into the driveway. Then Lynn appears and everyone yells,  "Surprise!" Lynn is moved and happy when she sees all the donations for the homeless shelter. Then the party gets underway with music and dancing, and everyone has a great time.