What is bomb threat hilton school?

As an AI language model, I do not have access to current news or information. Therefore, I cannot provide specific details about a bomb threat at Hilton School. However, in general, a bomb threat is a threatening phone call, letter or email that contains a warning of a bomb or explosive device at a specific location. In such cases, the authorities including the police and the bomb squad will be immediately informed to take necessary action and investigate the threat to ensure the safety of the school and its students.