Sara Sharif, the 10-year-old British girl found alone and dead inside her family home, was a "bubbly and confident" pupil, her former headteacher said.
The principal of Sara's school in the Surrey village of Byfleet, Jacquie Chambers, said the year 5 student would be "dearly missed" by her fellow pupils and teachers.
Police discovered Sara's beaten body inside her house on August 9, after rushing to the property straight after her father Urfan Sharif made a 999 telephone call from Pakistan.
Sharif had flown from London to Islamabad the day before Sara was discovered, after hurriedly booking flight tickets for himself, his partner, brother and five children.
A post-mortem examination showed Sara had suffered extensive injuries over a sustained period before she was found, but a cause of death was not established.
In a statement reported by the BBC, school principal Chambers said Sara was "a bubbly, confident little girl who had the most beautiful smile. She was full of ideas and was very passionate about the things she believed in".
Sara's death was "heartbreaking news" and had affected many, Chambers added.
"Sara will be dearly missed and, as a school community, we are all deeply affected by this tragedy."
Sharif, 41, his partner Beinash Batool, 29, and his brother Faisal Malik, 28, are all believed to now be in Pakistan and are wanted for questioning.
The trio took five children, aged from one to 13, with them.
A local travel agent said he was contacted by someone known to Sara around 10pm the day before her body was found, wanting plane tickets for three adults and five children.
Surrey County Council have confirmed Sara was known to them, but have not provided context as to why.
Council leader Tim Oliver said officials are "working tirelessly with our safeguarding partners to gain a full understanding of the situation as quickly as possible".
Britain's National Child Safeguarding Panel had been notified and a multi-agency rapid review had been launched.
Pakistani police are seeking to arrest Sharif.
Sharif's family home in Pakistan is located in Jhelum, Punjab, around 135 kilometres from the capital, Islamabad.
Officer Imran Ahmed said police found evidence that Sharif briefly returned to Jhelum, before leaving and going into hiding.
Another officer in Jhelum, Nisar Ahmed, said he and his men went to Sharif's native village of Kari but learned the family left around 20 years ago and never returned.
There is no formal extradition treaty between the UK and Pakistan.
UK police said they were working with international agencies, including Interpol, the National Crime Agency and the UK Foreign Office to progress their enquiries with Pakistani authorities.
With Associated Press
