Ismelda Murk

Ismelda Murk is a greasy haired witch who needs to wash her hair. She began attending Hogwarts School of Witchcraft and Wizardry in 1984 and was sorted into Slytherin.

Third year
During the 1986–1987 school year, she, along with fellow Slytherin Barnaby Lee, joined Merula Snyde on her search for the Cursed Vaults. When Barnaby asked his associates' opinion on what the next Cursed Vault could contain, Ismelda hoped it to be something that could bring "the Dark Lord" back.

Ismelda accompanied Merula to confront Jacob's sibling, Tulip Karasu, Barnaby, and another of their friends at the entrance of the Restricted Section, hoping to beat them to get into the next Cursed Vault first. When Jacob's sibling beat Merula over a fair duel, Ismelda fired Everte Statum out of the blue, which would have hit Jacob's sibling had Barnaby jumped out to take the hit. Ismelda showed no remorse about harming her former ally, and when Barnaby refused to back down, she stated he could suffer with his new friend. Both Ismelda and Merula were then held back by Barnaby while the others entered the Restricted Section to figure out how to gain entry to the next vault.

Personality and traits
Ismelda was an unbelievably cruel witch, saying that she "will cast the killing curse on the first Gryffindor she sees," or coming up with the idea to torture Jacob's sibling with the Cruciatus Curse in order to obtain information about the Cursed Vaults. She was overheard telling Merula Snyde that she once had a jar of Muggle blood that dried out, and gleefully voiced her hope that she would see Professor Silvanus Kettleburn "lose his other eye this year." It is unknown, however, how many of these sentiments are her actual opinions or feelings, or if she says it merely for shock value.

She also appeared to sympathize with the ideals of Lord Voldemort.

Etymology
Ismelda is a name of German origin, meaning "she who battles with sword."

Murk is a Germanised spelling of the following, with the majority of them meaning "dark:" Old English mirce, Proto-Germanic *merkuz, and Proto-Indo-European *merg-. It also cognate with various languages with the meaning of "dark," including Danish and Norwegian mørk, Swedish mörk, and Icelandic myrkur.

Notes and References
Ismelda Murk Измельда Мёрк