Well, that arrival certainly could have been less awkward.

The goblins seem more shocked than angry in the JP version.

The party starts to leave before things go downhill. One of the goblins stops them.

Marle: Thanks for telling us!
But...
why are you being kind to us?
Demons hate humans, right?

Lucca: Thanks for the advice!
But, Demons are supposed
to hate humans, right?
Why are you...?

Robo: THANK you for the suggestion.
HOWEVER, WHY are you so
graciously BEING kind to us?
Do NOT the Demons HATE humans?

Crono and friends leave the house. Something seems to be happening in the middle of town... Demons assembled around a statue of the Magus are chanting loudly.

Marle: Hey, Crono.
What could those eerie voices be?

Marle: Crono, what's that weird
chanting?

Lucca: ...eerie voices.
What could be going on here?

Lucca: That chanting's pretty
creepy!
What do you make of it?

Robo: Wh-what ON EARTH might
THESE eerie voices BE?

Robo: From where does this eerie
chanting originate?

Crono and the others listen to what the Demons have to say when not busy chanting...

In the rest of the town, the Demons are generally hostile, which is most evident in the tavern and goods shop.

Trying to reason with them just gets on their nerves and leads to being attacked. Winning the (easy) battles forces them to deal. It doesn't make that much difference, though, since everything is horribly overpriced.

However, the goblins, who seem to be bullied around by the tougher Demons, are fairly friendly. Other than the two first encountered, this is most obvious in the chief's house. The chief himself is basically a big blue ball of lard with a tail, who sits around doing nothing...

...while goblins are forced to perform various menial tasks.

And don't miss the Speed Capsule and Magic Capsule here.

There's some kind of blue pyramid north of town that seems to be made of a forcefield, but the party can't do anything there at this point. They head west...

It's a fairly normal house. Swords hang on the wall. The old man who stands inside was at the festival earlier.

Bosch: Oh, come to visit, have you!
I hope you view my collection before
you leave; I'm quite proud of it.
Ah, you've come to buy the weapons I've
made, haven't you? I'll make it cheap.

MELCHIOR: Ah, hello!
Could I interest you in a weapon?

Bosch: Weapons, you see...
They aren't for taking life.
They ought to be to foster life.

MELCHIOR: Weapons...
If there weren't evil in this world,
there would be no need for
weapons.
What a sad state of affairs...

I don't think I need to point out how badly the above lines got mangled...

Bosch: Ah, yes, all of you.
If you want to return to the town of Truce,
you should pass through the cave in the
mountain north of this house.

MELCHIOR: Should you desire to return
to Truce village, use the shortcut
through the cave in the mountains to
the north.

It's a dank cave. There's no music, just the sound of rushing water. Two Demon thugs stand guard inside.

These particular opponents are the no different from the ones in Manoria Abbey, but everything else is new. Enemies throughout the cave are resistant to physical attacks, but magic easily dispatches them. Good thing the party just learned to use magic... and the monsters never return once beaten, so running low on MP isn't really a problem, not with free recovery just a Gate jump away.

After the boring old Servant of the Magus pair, monsters here include the Cave Bat, Klein (Jinn Bottle), Cave Chaos (Octoblush), Ballmadillo R (Rolypoly), and Helmet Shrimp (Tempurite). All have high physical defense, many of them extremely high, but lack more than average resistance to any form of magic, so have fun with spells and laser beams.

Now that magic is thrown into the mix, cooperative skills start getting more interesting. As the characters learn more individual techniques, a total of eight each, they learn more combined ones, eventually totalling three for each pair (with the exception of one optional character). Additionally, every group of three that includes Crono (and excludes the same optional character), and a few other combinations with the help of special items, can learn a trio technique, but most of those are built on more advanced skills that won't be available for a while.

Deep into the cave, a beast with a spiky back, big teeth, and huge claws approaches.

Of course, it's another boss battle. Fitting the theme of the cave, Hekeran barely takes any damage from physical attacks, but has normal vulnerability to magic. The beast doesn't hurt too badly most of the time, but sometimes goes into a counterattacking stance...

...which is a good time to heal, since he'll counter if hit (and that should be Water 2 in the NA version)...

...but won't take any other actions. Wait for it to end...

...then resume attacking as usual.

And then it finally dies. But the party is unsettled.

Lucca: So, the Magus of the Middle
Ages really did give birth to the Lavos
that wrecked this planet's future...

Lucca: In the Middle Ages, Magus
created Lavos, the destroyer of this
planet's future!

Marle: So the one who gave birth to the
Lavos that wrecked this planet's future
was the Magus of the Middle Ages...

Marle: In the Middle Ages, Magus
created Lavos, who is responsible for
destroying this planet's future.

Marle: Would history change if we went to
the Middle Ages and beat the Magus?

Marle: If we go to the Middle Ages
and take out Magus, can we
change history?

Robo: IF we CAN defeat the Magus in the
Middle Ages, MIGHT history change?

Robo: If we go to the Middle Ages
and destroy Magus, can we
change history?

Lucca: If we use the Gate in the Millennial
Festival square...

Lucca: We could use the Gate at the
Fairgrounds!

Marle: Hey, Crono. If we use the Gate
in the Millennial Festival square...

Marle: Hey, Crono, we could use
the Gate at the Fairgrounds!

The internal storyline progression tracking variable is now 0x51.

There's a whirlpool at the end of the cave. The party jumps in, and after a brief trip... they land in the outskirts of Truce Village, near Lucca's house. The near end of the whirlpool remains, and they can jump back in and return to the cave at any time, though there's little point to it for now. As long as they're in the area, might as well visit around...

It's possible, though largely pointless, to avoid going through the whirlpool. As soon as you beat Hekeran, you can use the Gate in Guardia Forest without being harassed by soldiers—the game has no further reason to block it off now that you can get back to that region anyway—so if you feel like backtracking, have fun.

Just because they're tired of watching the forest doesn't mean they're ready to welcome Crono with open arms, though.

Soldier: !!
It-it's the terrorist cell!!

Everyone looks startled.

The soldiers chase them out.

Marle: Let's go, Crono!
I don't wanna see a thickheaded
father like him!

Marle: Come on, Crono!
I don't wanna see that bullheaded
fool!

She rushes out, and the others follow.

Oh well. Best to go elsewhere for now.

Books and machinery are strewn everywhere. Lucca's mother sits upstairs.

Lara: Lucca and Taban are both
so busy with inventions.

LARA: Lucca and Taban only care
about their silly toys!

That really sounds more like a simple statement of fact than a complaint to me.

Taban enters and walks up to her.

Taban: Look, I got these apples
with today's earnings.

Taban heads back downstairs. Bring Lucca to see him.

Taban: The great Taban's great invention.
The perfect armor for Lucca!
Use it well!

TABAN: It's my finest work!
The ultimate in defense for my,
daughter!

Gina is sitting in a chair, instead of being up and busy as usual. She stands up, surprised, as the party walks in.

Gina: Crono!!
Crono! Crono!!
What a relief...
I heard you were going
to be executed...
Don't make your mother
worry like that.

While they're there, time for more meetings. Let's start with Lucca.

おばさん (oba-san) translates to "aunt", but is also used to address middle-aged women in general, though some may insist on younger-sounding terms.

Gina: Ah, Lucca.
You haven't come by much lately, have you?

MOM: Lucca!
We hardly see you these days!

Gina: Yes, well, make sure you don't push
yourself so hard you compromise your health.
Give my best regards to Lara and Taban
too, please.

Robo's turn.

MOM: Goodness...!
Lucca, is THIS one of your
inventions?

Robo: It is nice to MEET you.
I AM called Robo.
I HAVE recieved considerable
assistance from Crono.

Robo: Greetings.
I am Robo.
Crono is my friend.

Gina: My, my, so courteous.
Even though you look a bit
peculiar, you're very polite.
Crono, follow his example a little.

MOM: My, how poilte!
Strange looking, but well behaved!
Crono, you could learn a thing or
two.

A small shop in Truce Village. Fritz (the guy Crono rescued from the dungeon earlier) and a girl about the same age are here.

He suddenly realizes who it is. The girl comes over to the counter as he talks.

Fritz: Crono!!!
Seriously, thank you for back then.
Thanks to you, I was able to come
back home.
I'm beat...
I was thinking I'd outdo my old man,
and going on a trip to stock up was
all well and good...
But I got mixed up in the arrest of a gang
of robbers at an inn on the way back.
I got arrested along with them.
And the death penalty, without even
hearing me out! Why in the... phew...
You really saved me.

FRITZ: Crono!!
I owe you one!
You saved my skin back there.
Man, was I up the creek!
I went off on a buying trip, and
ended up getting jailed with a bunch
of thieves!
The officials planned to execute me
without a trial!
What has gotten into them?

Elaine: Thank you so very much.
Now I'm so happy.

ELAINE: We're forever in your debt!
Thank you, again!

Someone walks out of the back room. Fritz is startled.

Fritz's dad leaves.

Fritz: Well, Crono.
It's business from here on, go
on and buy what I stocked up.

FRITZ: Now Crono, down to
business.
Please, buy whatever you like!

Oh dear. Apparently Fritz didn't make it out on his own.

Stop by the Gate in the forest before leaving, now that it's no longer guarded, to allow access to both ends from the Fathest Reaches of Time. After finishing with any other side trips, head to the back of Leene Square to add that Gate as well and continue on the journey...

Upon arriving in the Middle Ages, the internal storyline progression tracking variable becomes 0x54, starting the next chapter.

The information should come in handy, but nothing with any historical impact happened in this chapter. Certainly their visit to Medina didn't change any minds. While it is possible to intimidate the shopkeepers into doing business, that's no way to engender good will, and their prices when dealing with humans remain obscenely inflated even then.