right place, wrong time (джен)

Twelve-year-old Tim Drake has homework to finish and dinner waiting at home. He even has an invitation to spend time with Bruce before patrol the next day reviewing toxins and antidotes. It doesn't matter that Bruce prefers to keep things all-business and down in the Batcave. Having Robin again is helping, Tim can already see that, and it's always a relief to know when he's invited back.
Sixteen-year-old Tim Drake decides that he'd rather keep his distance from the tempting research project Bruce has across two work tables. It's archaeology and time travel all at once, even more interesting than usual after Bruce's long trip through time, but Bruce probably won't crack that in one night. Getting involved in the project will eliminate Tim's chance to escape to his apartment for a quiet evening rather instead of struggling through an awkward dinner with Jason and Damian and Bruce.
When the Tims suddenly switch times and places, twelve-year-old Tim has an invitation to dinner and sixteen-year-old Tim knows just what kind of ripples someone can leave from the past.