Yohanes Loukas (died 870s), also known as The Oil, was an Anglo-Saxon member of the Wardens of Faith sect of the Order of the Ancients in England during the 9th century. Holding the title of Preost, Yohanes frequented the hamlet of Fearnhamme in Hamtunscire.
Upon joining the priesthood, Yohanes took up the cloth in order to bring respect towards his family. Nevertheless, while in the Church, he obsessed over the need of hierarchy and discipline. This idealism led him to join the Order. The manner of his loyalty was to meet with influential people, kill them, and then replace the empty positions with his own family.
The cryptonym, The Oil, was recovered from the Viking shieldmaiden Eivor Varinsdottir of the Raven Clan from a clue. From the clue, it stated of information at a festival near Henge Farm, south of Stonehenge in Hamtunscire. At the festival, the next clue was on top of a table filled with goods and food. This clue stated one to search the pig farm at Readingum Abbey in Hamtunscire. Coinciding with a raid and behind the abbey's soldiers, a barred well was found within the area. Into the well, the last clue was found at the bottom of the well. This clue revealed the location and true identity of The Oil: Yohanes Loukas. Yohanes also could be found in Fearnhamme's hamlet in Hamtunscire.
In Fearnhamme, Yohanes was seen walking about the city and checking on the town's daily routines. However, Yohanes was quickly assassinated by Eivor, who ended his presence within the town.
- The first clue of this Order member can be found by either assassinating the The Adze or killing the Zealot Hrothgar.
- Like The Anvil, Yohanes only cared about his family, rather than the tenets and beliefs of the Order.
- Yohanes is one of only two Order members who are given a surname, with the other member being Gorm Kjotvesson.