Heika of Friesland (died 876), also known as The Sickle, was a member of the Wardens of Faith sect of the Order of the Ancients in England during the 9th century. Holding the title of Palatinus, Heika worked as a baker in the market of Colcestre, Essexe.
Growing near the waters of Friesland, Heika became quite wise about the deadly inflictions of the Weever fish. Later, Heika, with the guidance of the Order, began a bakery of her own means. However, Heika had certain bread slices, seasoned with Weever fish scales, given to customers the Order wanted dead.
The title, The Sickle, was recovered from The Viking shieldmaiden Eivor Varinsdottir of the Raven Clan from a clue from killing the Zealot Woden. The clue stated for one to search the Maeldun's Saltern Camp, along eastern Essexe, as the supply and need of Weever fish came from the area. Around the camp, a barred building, on the campgrounds, with its second level had a note on top of a table filled with scrolls. The note revealed the location and true identity of The Sickle: Heika of Friesland. Heike's location was revealed to be her bakery in Colcestre. In the city's market, Heika resided in her home, which was also her bakery. Unknown to her, Heika was unaware of Eivor, who came inside her locale and assassinated her, ending her poisonous business.