So Jocasta fights through the pain of her envenomed wound to give Roger and Mitch the layout of the basement, all the side doors, service doors, and other nooks and crannies that an Irruptor (or four) might be hiding in. Doors are nudged upon, rooms and offices scanned, service areas of the hotel given a quick gunless once over (by Roger, given his previous association with the hotel staff, and yes, I do realize he crit failed his Sense roll, oops). The last area our rifle-toting Mod Squad checks is the tunnel that leads to the parking garage. And its here where Mitch's Detect (History B) begins pinging. Jocasta, Roger, and Mitch make it to the glass door that leads out to the garage's Level 1; this is where the psychological "bubble" that prevents people from wanting to leave the con is, and on the other side of the bubble and the glass door are a couple of junior G-men, standing by, walkies in hand. They see Jo, whom they consulted with outside, and Roger with his FBI credentials and give a curt silent nod through the glass.

But Mitch's excellent Observation, boosted by his Detect, makes his instinctive psychic realization sudden and sinking: there are three sources of distinct History B energy outside the hotel Zone. If Mitch were a betting man, he'd wager that whatever these sources are—Irruptor or reality shard, he can't really taste the flavor of them because of the great distance, but they are substantial—they lie near the far corner of the parking garage under Union Square, three or four (or even five?) levels down in the garage.

Something ... someTHINGS, have managed to get out of the hotel.

Hidden Lore roll (gonna put all this in one message but this is all three of you putting your heads together):

First things first, the barrier.

Roger is pretty sure that if your willpower isn't good enough, you're not going to willingly go through the barrier. The temblor zone wants more souls in it, souls who can believe or bleed. It doesn't want the weak-willed to be flung out the door (or a window) and lose their soul in the process. Roger got out for a short time, and when he did pass through the barrier he felt like his SANDMAN training against Anunnaki powers was getting a workout. Given all of you have the training, if you feel like you can leave, you can resist the soul-loss. (In other words, the barrier is NOT a save vs. Death Magic or die power word, kill type situation. Getting thrown through the barrier physically and failing your save, however... that's another thing entirely.)(edited)

Second, the sources of History B energy on level 1d3+2 of the garage: whether they're full-fledged Irruptors or reality shards, they shouldn't be out there... unless they have a role or function outside the hotel within the triggered retrocreation we find ourselves in. Given the plans the Red Kings have put into play here—get humanity to invent cyclotrons in 1929, and then 44 years later put a couple of students within spitting distance of using Anunnaki hypergeometry to enter a completely different (fictional) timeline, not to mention that damn clock which could be from two different years itself—whatever these three sources of History B are doing, it's what they're meant to be doing, which means they're meant to be outside the Zone. They might have started here, but they're meant to be somewhere else doing something else. So that's slightly worrying.