Suffragette - The Guardians of Time, #4

When Izzy agreed to take Basia from post-apocalyptic Hampshire back to early twentieth century London, she had no idea of the political powder keg she was walking into. Tired of trying to prevent humanity hurtling towards the future she saw in Basia's world, Izzy has returned to her own timeline to decide whether she will go on fighting, or pick up the threads of her old life working as a journalist in London. Basia had agreed to her soulmate's dying wish for her to carry on his work uniting the people on war torn Hampshire, England.
Not ready to take on that responsibility, she took Time Guardian Sigma's advice and has gone back in time to learn about women's role in social change from Time Fixer Izzy. The two girls are in London for less than a day when their plans are derailed. Amidst violence and public outrage against them, advocates for women's suffrage are marching to London, and Izzy is sent to Winchester to cover part of the march for a newspaper. In Winchester Izzy and Basia are forced to face their pasts, while plotting their futures.
If that isn't difficult enough, fate intervenes in the guise of a missing suffragist. As past and present blur together, they fear not only for the life of the missing girl, but also for the impact her disappearance will have on the timeline. They call on the help of their friends, but will they be able to rescue her in time? And, where is Sigma when you need him?