Final answer:
Mary Warren went against Elizabeth's order to remain in the house by joining the group of girls accusing people of witchcraft during the Salem witch trials.
Step-by-step explanation:
Mary Warren went against Elizabeth's order to remain in the house by joining the group of girls accusing people of witchcraft and attending the Salem witch trials. Mary Warren did this because she wanted to fit in and gain acceptance from the other girls. She was also influenced and pressured by the authority figures in the community, such as Reverend Parris and Deputy Governor Danforth.