Come in, Team Prehistoria!

[ A creepypasta dinosaur AU ]

Nobody questioned why Zalgo wanted to expand the reaches of his empire back to the age of dinosaurs, but everyone questioned how.

"By linking these runes."

Team Prehistoria,
Your mission, should you choose to accept or decline it, is to be given a one-way trip back to the age of dinosaurs, and to set up the three runes. Upon doing so, you will be teleported back home, and your mission will be complete.

Team Present,
Your mission, should you choose to accept or decline it, is to serve as mission control, and relay instructions and information to and from Team Prehistoria.

But what happens when linking the runes between the two timelines doesn't work?

And how long is it until the meteor strikes?