Anna and Dolla's room was filled with light. Sunbeams tickled the girls' noses, reminding them that a new day had arrived - the day of laughter! And Anna and Dolla were ready for it. For weeks they had be working on a plan to make everyone in the house laugh.

Dolla, laughing, jumped off the bed. But what was her surprise when she saw Anna's face. There wasn't a hint of a smile on him.

- Anna, what's wrong? - Dolla tried to find out, but she only shrugged sadly. She didn't know why she didn't feel like laughing herself.

- Unicorn, maybe you know what's wrong? - Dolla turned to their mutual friend.

- I gave everyone happy dreams during the night, but they didn't work on Anna either, - answered the Unicorn, - It seems that our friend has lost her laughter somewhere! There's only one way to put it back. It is necessary to make all the people of the house laugh. Only the cheerfulness of family and friends will fill Anna's heart with joy. That's when she will find her laughter.

It was good that the girls had prepared jokes, pranks and funny pranks for April 1.

Together, Anna, Dolla and the Unicorn went to make her grandmother laugh. Ta was very busy and as usual was baking something. To begin with, Dolla armed herself with prepared jokes, but grandmother only smiled.

- Dolla, one smile won't be enough," said the Unicorn, "We have to make Grandma laugh to cure Anna.

No sooner had Dolla started to think about what they should do, than suddenly the Unicorn sneezed, and flour flew white dust all over the kitchen, dirtying the faces of Anna and Dolla. Grandmother immediately laughed. The laughter was as warm as her baked goods. It traveled in a wave through the kitchen and reached everyone's heart. Dolla and the Unicorn gave in to him and laughed too. Only Anna remained silent. But there was a slight change in her face - her eyes were smiling, though the corners of her lips did not want to rise.

Next it was Mom's turn, who was looking thoughtfully at the monitor screen. It meant that she was working and it would not be easy to cheer her up. Anna drew funny pictures, but Mama only nodded at them and stroked the girls' heads. Of course, this is not enough. With annoyance, our merry company turned toward the room to think about how else to cheer up Mom. Suddenly, the Unicorn stumbled and began to lose his balance. Dolla tried to save him from falling, but ended up tumbling to the floor with him. No one was hurt by the fall, but Doll and Unicorn began to laugh. Mom also joined in the giddy laughter. Mom's laughter was affectionate and velvet like her embrace. Just then, a barely perceptible smile appeared on Anna's face.

The final challenge was to cheer up Daddy! He was reading a book and didn't even notice the girls and Unicorn enter the room. Dolla was just about ready to start telling jokes when suddenly her father's book slammed shut abruptly. Unicorn jumped up and shrieked so funny that Daddy's laughter immediately thundered through the room.

And already every corner of the house was filled with fun and joy. Finally, Anna too began to chime with laughter.

So Dolla, together with the Unicorn, helped Anna find the laughter she had lost.