Topher and his father are trying to get over the death of Topher's mother, an Egyptologist, when they take in a stray cat. This cat bears an uncanny resemblance to a cat ornament given to Topher by his mother and so they name it 'Ka', meaning 'double'. Topher becomes very attached to Ka and is puzzled by her mysterious absences. One day when he is playing a computer game with an Egyptian theme, Ka jumps on the keys and spells out the name Bubastis, which was the centre of cat worship in Ancient Egypt. Could Ka really be leading a double life and what is she trying to tell Topher?
The Doctor's Companion: A person who explores time and space with the Doctor, fights enemies with the Doctor, and often has to save the Doctor's life.
If it wasn't for the companions, the Doctor probably wouldn't have made it out of so many scrapes. To celebrate the formidable women who have travelled in the TARDIS, dive into four fantastic new adventures with the Doctor, starring Rose, Sarah-Jane, Clara and Bill.
Written by Jenny Colgan, Jacqueline Rayner, Dorothy Koomson and Susan Calman, these stories are the perfect way to celebrate the Doctor's fantastic female heroines, for fans of all ages.