HBO's horror prequel series It: Welcome to Derry released its most heartbreaking and tragic episode titled "The Black Spot" on December 7. The penultimate episode of the sophomore season featured a dark story from Stephen King's pages, which saw Derry’s racist police chief, Clint Bowers, burn down the iconic recreational facility to the ground, killing many airmen and civilians in the process.While this chilling sequence was straight out of a horror movie, the episode also featured the origins of Its most iconic and favorite iterations, Pennywise the dancing clown.It: Welcome to Derry Episode 7 finally revealed that It stole the iconic guise from Bob Gray, Ingrid's father, who used to perform for the Derry children as Pennywise. It lured Bob Gray into the woods and killed him, stealing his Pennywise persona in the process because of his popularity and fascination among children.More on this in our story.It: Welcome to Derry Episode 7- It stole the iconic Pennywise guise from Bob Gray View this post on Instagram Instagram PostIt: Welcome to Derry Episode 7 opened with a chilling cold open that revealed the details about It's most iconic iteration, ie, Pennywise. Since Derry's evil entity is shape-shifting, its original form is unknown but thanks to King's novel and the movies, Pennywise the dancing clown is the most famous. But how did It first assume this creepy clown identity? We finally have the answer.The latest episode in It: Welcome to Derry opened with a flashback to 1908, where a young Ingrid Kersh is working at the fun fair with her father Bob Gray, whose most popular act among children is Pennywise the Dancing Clown. Children are naturally drawn to Bob Gray, who puts on a sad act, hinting that the clown misses his dead wife. However, Pennywise manages to turn the act happy again and the children storm the stage, practically bullying him. This cruel yet ironic twist is misunderstood by a young Ingrid, who also feels drawn towards her father's profession and dresses up as Pennywise's aide, named Periwinkle (after her late mother) by Bob Gray.It: Welcome to Derry Episode 7 also featured a brief sneak peek of a young, creepy child watching Bob Gray (as Pennywise) perform for the children from a nearby window.The episode confirms that the young child was It when he returns at night to a relaxed Bob Gray, smoking after his act. The bright yellow light shining in his eyes is a dead giveaway of his identity and he seems fascinated by the fact that 'children are drawn' to Bob Gray's Pennywise persona. The child, who is clearly the evil entity in disguise, lures Bob Gray into the woods, asking for his help in looking for his parents.The next thing we know, the townspeople discover Bob Gray's bloody handkerchief and assume that he was taken and killed by a pack of wolves. However, in reality, the evil entity killed Bob Gray and assumed his creepy clown persona of Pennywise.Ingrid Kersh realized that Pennywise is not Bob Gray in It: Welcome to Derry Episode 7 View this post on Instagram Instagram PostWhile it was certainly traumatic for a young Ingrid to cope after her father's death, she found solace in Pennywise after she first witnessed him with Mabel in Juniper Hill. It: Welcome to Derry Episode 6 confirmed how Ingrid was still working as Pennywise's aide and had transformed Juniper Hill into a feeding ground for the entity, mistaking it for her father, Bob Gray.After the tragic fire that destroyed The Black Spot and took many lives in It: Welcome to Derry Episode 7, we learn that Ingrid tipped Clint Bowers about Hank Grogan's hiding place. After Pennywise chomps on Stanley, the butcher in front of Ingrid, she confesses how she ratted out on her lover because she was sure that all that fear would tempt Pennywise and she would get to meet her 'papa'. However, after Pennywise decides to take his leave, Ingrid tries to stop him and realizes that it is not her father Bob Gray, but an evil entity. This discovery seals Ingrid's fate and Pennywise leaves her in a comatose state.Catch the It: Welcome to Derry finale on HBO on December 14.For the latest scoops on your favorite TV shows and movies, follow SoapCentral.