More like Now, Then, and Everywhen

anchored on:science fictiontime travelour worldcontemporary

but

Narrow

The MissingSeries
series10 books2008
About coming of age.
“Jonah Skidmore is one of the stolen children, and he, along with his non-adopted sister Katherine, must help return the missing kids to their rightful places in history and fix time before it is destroyed.”
from the catalogue
Start with Found →
KairosSeries
series11 books1962
completed
Start with A Wrinkle in Time →
Time Travelers Never DieSeries
series2 books1996
Science fiction and time travel, set in contemporary and our world.
Start with Time Travelers Never Die →
The Merchant PrincesSeries
series14 books2004
Science fantasy and alternate history, about political intrigue, set in parallel universe.
“In the series, there exist a number of parallel worlds, all of which are on the same geographical Earth but with different societies at different points of development.”
from the catalogue
Start with The Family Trade →
The Apocalypse TrollNovel
David Weberstandalone novel1999
Alien invasion, about aliens and war.
The Accidental Time MachineNovel
Joe Haldemanstandalone novel2007
Science fiction and time travel, adventurous in tone, set in contemporary and our world.