Dr. Henry Ethelrod is an expert in Indo-European languages and holds a position with the British Museum, London. Ethelrod is tall, slender and distinguished-looking, about 45 years old and extremely well educated. Clearly of the English aristocracy, his cultured tones barely disguise the disdain he holds for those he regards as less well educated or less well-bred than himself. This includes all foreigners, but especially the French.
He has however come to like and respect the investigators, who he regards as companions in adversity following their shared adventures in Greenland.
Ethelrod walks with a slight limp, the result of a bullet wound suffered during the Boer War. He was in fact decorated several times for bravery during the conflict, but would never dream of bragging about this, or even talking about his war experiences unless asked.
The investigators became re-acquainted with Ethelrod when they visited London in 1925 while tracing the Carlyle Expedition.
They met him again in January 1927 when they were invited to his talk on Cryptozoology at the Imperial Institute Grand Banquet. However their plans to meet for a meal the following weekend were ruined by a house fire in which he was badly injured, before sending them on a quest for the Sedefkar Simulacrum.
Ethelrod died in the Red Mosque in Constantinople on 14 April 1927, having been multilated at the hands of the Brothers of The Skin.