One of the most poisonous Bolete in britain is definitely the Satans Bolete but there isn't any noted deaths in the UK, it seems more likely to result in disease but 1 report from Europe attributes a Loss of life to this mushroom, it is more harmful Uncooked. Woodland Edges: https://trentonfwkzm.liberty-blog.com/30347389/magic-mushroom-uk-options