A THRILL-seeking boy with a profound brain injury has launched a campaign to save the charity which has changed his life as he celebrates his 13th birthday. Oliver Voysey is marking becoming a teenager with a series of 13 themed challenges, all ending in a face plant into a cake. And he's asking others to join Oliver’s Calvert Army, his crowdfunding appeal to help save the Calvert Trust's Lake District activity centre for people with disabilities. Fundraisers dream up a challenge based around the number 13, then face plant, donate to the appeal and nominate friends. Calvert Lakes is threatened with closure over a £1 million shortfall in income thanks to the Covid crisis.