More like Quantum Coin

anchored on:science fictionparallel universecontemporaryyoung adultcoming of ageadventurous

but

Narrow

InterWorldSeries
series3 books2007
Science fantasy and portal fantasy.
“Michael Reaves developed the story with Neil Gaiman, and Reaves's daughter Mallory Reaves co-wrote the two sequels.”
from the catalogue
Start with InterWorld →
Fair CoinSeries
series2 books2012
Science fiction, adventurous in tone, about coming of age and identity, set in contemporary and parallel universe.
“When evil versions of himself and best friend Nate appear one day, teenaged Ephraim embarks on a dangerous odyssey through parallel worlds to make things right.”
from the catalogue
Start with Fair Coin →
The Boy Who Reversed HimselfNovel
William Sleatorstandalone novel1986
Science fiction, adventurous in tone, about coming of age, set in contemporary and parallel universe.
Imperial GalaxySeries
series2 books2012
Space opera, about political intrigue, set in space and far future.
“Garth Nix's A Confusion of Princes follows Khemri through the empire's ruthless military, its secret intelligence service, and a deadly, decades-long competition to determine who might one day take the throne.”
from the catalogue
Start with A Confusion of Princes →
JumperSeries
series6 books1992
About psychic powers.
“Steven Gould's series continues across Reflex, Impulse, and Exo, later following his and his wife's daughter as a second-generation jumper.”
from the catalogue
Start with Jumper →
First LightNovel
Rebecca Steadstandalone novel2007
Mystery & detective, about ecological collapse and survival, set in arctic & antarctica.
“First Light explains how global warming is melting Gracehope and Peter and Thea's attempt to persuade the people to leave.”
from the catalogue