When the baronesses passes away, the school for the deaf receives the "bagbag" jewel. However nowbody knows where it is.
A series of mysterious events and the pestering motor gang 'The Red Vampires' turns the idyllic holiday of Blinker and his friends into a thrilling adventure.
When Blinker is helping his dad as lifesaver at the sea in Ostend, they discover dumped chemicals by Blix Industries.
