Write a short story about a toddler and her imaginary friend. She is with her family and excited but nervous about the new surroundings

She was about the leave the hotel room with her family. She watched as her parents packed up their bags and got her baby brother ready for a day out. They were busily talking to each other and running through their checklist of things to bring for the day out at the castle.
Feeling like she should help she asked Teetum, her imaginary friend to help her back her bag. Together her and Teetum packed imaginary sandwiches, imaginary rain coats and imaginary toys for the day out. This made her feel ready to face the excitement of the new city and the day out at the castle.
As they stepped out onto the street she held her mothers hand knowing they had everything they needed for the day.