She could use her skills as a Faceless Man. Arya might disguise herself as someone else and slip away unnoticed.
Since Arya is very observant, she might notice the routines of the Bolton guards. For instance, she could figure out when the guards change shifts and there is a moment of confusion. During that time, she could make her move. Also, she could use her knowledge of poisons. If she can get her hands on some poison, she could incapacitate some of the guards or even the Boltons themselves, and then escape. Moreover, Arya has a strong will. She could endure any hardships during her captivity and wait for the perfect opportunity to break free, like during a battle or a celebration when the Boltons are distracted.
Well, a plot could be centered around a political intrigue where Ramsay believes Arya is a valuable pawn in his power - grabbing scheme. But Arya, being Arya, has her own agenda. She could start building her own network within Ramsay's territory, befriending the downtrodden and oppressed. Eventually, she could lead a rebellion from within, using the element of surprise and her knowledge of Ramsay's weaknesses.
If Arya and Ramsay interacted, it would likely be a battle of wits. Arya is smart and resourceful, while Ramsay is cruel and cunning. Their interactions could lead to a lot of unexpected twists. For instance, Arya might be able to expose Ramsay's true nature to more people, which could change the political landscape in Westeros.
In the fanfic, she might be used as a bargaining chip. The Boltons could try to trade her for some advantage, like territory or loyalty from other houses.
As Queen of the North, Arya's character would transform significantly. Her wild and independent streak would still be there, but she'd learn to channel it in a more productive way. She'd start to understand the importance of traditions and how they can be used to unite the people. Her relationship with power would be complex. On one hand, she'd use it to protect the North, but on the other, she'd be cautious not to let it corrupt her. She'd develop a more regal presence, but still keep her roots as a Stark. Her skills as a spy and assassin would be used in more strategic ways, like uncovering plots against the North and eliminating threats without causing unnecessary chaos. And she'd have to learn to balance her personal desires with the needs of her kingdom.
Their relationship often develops through shared experiences. For instance, when they face a difficult battle together, it deepens their trust in each other.
Spider - Man could try to use his powers in a creative way. Maybe he uses his web - shooters to create a distraction, like making a large web - structure that collapses and causes chaos, allowing him to slip away while Venom is distracted.
In a time - travel fanfic, Arya's character could develop a sense of timelessness. She has seen so much death and destruction in her own time. But by traveling through time, she might start to see the bigger picture of the cycle of life and power in Westeros. This could make her more philosophical, and perhaps she'd be less driven by revenge and more focused on the long - term well - being of the realm.
Arya's identity as a Stark would be more deeply ingrained in her. She would start to embrace all the values that the Starks stand for. She might even try to teach these values to the people of the North. Her development would also involve her coming to terms with her past as a Faceless Man. She would decide how much of that part of her should be part of the new Stark legacy she is building.
Some people might be interested out of a sense of curiosity or a desire to explore 'what - if' scenarios that are completely different from the original story. However, these often deviate from the intended character arcs and the overall mood of the 'Game of Thrones' series.
Characters can escape capture by being really sneaky. Maybe they fake being ill or injured to lower the guards' vigilance. Or they could have a special skill, like being an expert lock-picker or climber, that gives them an edge.