Hibernaculum is the twelfth episode aired of the Silverwing Television series. This article is a . You can help My English Wiki by expanding it. Shade, Marina and Orestes stop to rest after escaping the mine and see Brutus and his forces flying above. They decide to keep going to Hibernaculum and warn the Silverwings that Brutus is out searching for them. Shade uses his soundmap and leads his two friends to the edge of a waterfall, but can't seem to pinpoint the entrance. Thanks to some encouragement from Marina and Orestes' keen eye, they discover that Hibernaculum is behind the waterfall.