Title: Sand and Glass
Author: eltea
Challenge: Timey–Wimey
Rating: PG-13 (language)
Pairing: Jack/Ten
Spoilers/warnings: Spoilers for TW S1/Who S4
Summary: Something terrible has happened to the Doctor, and Jack’s only clue is that somewhere, a timeline has gone wrong and started drowning his world in nightmares from the past. He’s desperate to save the man and planet he loves so much, but things are getting worse by the minute, and his only allies are a Martha Jones who doesn't know who he is and a pair of psychic friends who seem to have as many secrets as Jack does.
Author’s Note: Hello! I’m new to the community. And I’m terrified about posting. But thanks for the amazing challenge prompt; I had a blast writing this and accordingly have not slept. :D

( Even the shortest of trips in the TARDIS tended to be a bumpy ride, but all the same, she’d always seemed to favor her pilot – so when he and Martha kept their footing and the Doctor went down hard, Jack knew something was wrong even before alarms started shouting at them. )