The mediastinum is the part of the thoracic cavity that contains the lung, the heart and its major blood vessels, the trachea, the thymus gland, and the esophagus. False lungs are located outside of the mediastinum.
Erlendr was a Nord warrior. He is a hero, and his ghost can be found inside the Hall of Valor in Sovngarde. He, along with Nikulas and Hunroor, was turned into a stone pillar at Brodir Grove by the wizard Grimkell while searching for Sovngarde. Ulfgar the Unending later avenged them by killing Grimkell.
For the EC Comics publication, see Valor (EC Comics). Lar Gand, known primarily as Mon-El (and alternatively as Valor and M'Onel), is a fictional character in DC Comics' universe who is associated with the Legion of Super-Heroes, Superboy, and Superman.