A novel about a group of scientists who think they've invented a teleporter

Question

I read this a few years ago, around 2015/16 I think and I cannot for the life of me remember the title of it and googling isn't helping at all.

It was about a group of scientists who are working on creating a teleporter. It seemingly works (if I remember correctly, it connects to another room somewhere else in the facility), but it turns out that it's actually a gateway to alternate universes, so every time someone or something passes through it they're either slightly different, or very different. Things get real when an invisible field leaks out of it that affects everything it touches, and horrors start to spill out.

There is a moment where one of the scientists is doing the standard daily test of the machine and returns a mangled mess. The main character has a habit of flipping a coin, which leads to them discovering the invisible field when it's noticed that the coin has been subtly changing while in the air. Nearing the climax of the plot, there is a sizable alien force that starts to attack from the field. That's about everything of significance I can think of.

If anyone can help with the title, I'd really appreciate it. I don't think it was a particularly successful or big novel but I'd like to revisit it or the author's other works.

Answer 1

The Fold by Peter Clines (2015)

The second in The Threshold Universe series. It's the story of Mike Erikson, a man gifted with an eidetic memory, who is recruited to join a team of scientists who have invented a device that is capable of shrinking the distance traveled of anyone who uses it by hundreds of feet with a single step. The machine makes use of computer equation and magnetic fields to "fold" dimensions, which leads to much more dangerous outcomes than the promised reality of teleportation.