Poderia ser "Preso em avanço rápido" or "A fome do tempo" de Damien Broderick e Rory Barnes?
A partir de um rever de "Preso em avanço rápido":
Convinced that a plague is about to bring about the end of the world,
Natalie's dad tries to pack his family into a time machine that he has built in the garage - a bubble in space-time called a "vacuole"
that will allow them to skip into the future.
Eles são forçados a deixar a irmã para trás:
Things go slightly awry when Nat's kid sister Fiona refuses to go,
snatching the family dog Ferdinand and running away at the last
moment.
Do outro lado do portal:
When the family emerge from the vacuole a few minutes later they find
that more than a year has passed, and that Fiona is now a harder and
wiser young woman having lived through the plague.
Realising that things are not yet safe enough, the family jumps into the future, stopping to pick up a cute guy along the way, before
jumping again and again through time in search of a future they can
live in.
"The Hunger Of Time" é basicamente uma edição expandida do primeiro livro. Segundo os autores, o tom também é significativamente mais escuro. Ainda não li o primeiro livro, então não posso comentar sobre isso. Mas vi algumas mudanças (superficiais). O nome da irmã foi alterado de Fiona para Suzanna. E o pai passou de Donald para Hugh!
Um extrato de "A Fome do Tempo" logo após a morte de Grace (a mãe):
We could not bear to leave Mom’s body in the multiple landscapes of
5445. Weeping, we carried her into the vacuole and laid her on a foam rubber mattress. After some hours—or it might have been days, so far
as I could tell in my grief—Hugh activated the time change and brought
her with us through the green flash.
Natalie encontra Suzanna / Zanna em mais uma linha do tempo futura:
Barong and his consort lived in a kind of floating palace in what had
once been the South Pacific but was now, naturally, the North Pacific.
He and Zanna had been married seven years earlier with all due pomp and ceremony...
Faça uma pré-visualização do livro aqui or aqui.