Zoe from Oxfordshire is mad about science and dreams of becoming a scientist one day. She loves to carry out messy, noisy experiments, but her dad works night shifts, which means she has to be quiet while he sleeps. She desperately wants her own space where she can pursue her passions and make a mess whenever she wants!

Keir from Rugby is a massive fan of rollercoasters. Not only does he love to go on rides, he also likes building his own, and one day dreams of becoming a rollercoaster designer. He wants a den where he can celebrate his passion, create new coasters, and share his love of rides with his friends.

Avanaya from Leicester wants a relaxing, Indian-themed den so that she can escape her three cricket-loving brothers, and to remind her of the special times she has spent visiting her grandma in India.