can anyone help me locate all the treasures in twilight town.......?

Answer 1

Treasure Chest #01 = Potion:

You will find this Treasure Chest at the Southwest corner of the yard in
front of the Mansion.

Treasure Chest #02 = Mythril Shard:

You will find this Treasure Chest at the Northeast corner of the yard in
front of the Mansion.

Area: The Woods
===============

Treasure Chest #03 = Potion:

You will find this Treasure Chest at the South/Southwestern edge of this
forest.

Treasure Chest #04 = Mythril Shard:

You will find this Treasure Chest at the Northwestern edge of this forest.

Treasure Chest #05 = Hi-Potion:

You will find this Treasure Chest at the Northeastern edge of this forest.

Area: Market Street Tram Common
===============================

Treasure Chest #06 = Hi-Potion:

Go to the archway leading to the Sandlot and go through the Archway just
North of here to find this Treasure Chest in front of a building with a green
shingled roof.

Treasure Chest #07 = AP Boost:

Go up the stairs to the Northeast of the Item Shop and then go up the two
staircases to your right (East). When you reach the top of these staircases
go down the stairs up ahead (to the East) and climb up onto the green
shingled rooftop it is near. Jump from rooftop to rooftop in front of you
until you reach the blue shingled rooftops you see along the East wall in the
distance. Jump to the small blue shingled rooftop and then jump to the larger
blue rooftop to find this Treasure Chest on it.

Treasure Chest #08 = Tent:

Go up the stairs to the Northeast of the Item Shop and then go up the two
staircases to your right (East). Go down the stairs up ahead (to the East)
and you will see this Treasure Chest on the side of the small building with
the green shingled roof at the bottom of the stairs.

Treasure Chest #09 = Mythril Shard:

Go up the stairs to the Northeast of the Item Shop and then go up the two
staircases to your right (East). When you reach the top of these stairs go
across the bridge to your right (South) and you will see this Treasure chest
to your right on the other side of this bridge.

Treasure Chest #10 = Potion:

Go behind the Accessory Shop/Synthesis Workshop and you will see this
Treasure Chest near the wall just South of the shop/workshop.

Treasure Chest #11 = Mythril Shard:

Go up the stairs to the Northeast of the Item Shop and then go up the two
staircases to your right (East). When you reach the top of these stairs go
across the bridge to your right (South) and go to the East edge of this
rooftop you are on. Jump down to the small bridge you see between the two
buildings here and climb up onto the rooftop of the building to the East to
find this Treasure Chest.

Treasure Chest #12 = Potion:

You will find this Treasure Chest in front of the building just South of the
hole leading to "The Woods".

Area: Central Station
=====================

Treasure Chest #13 = Tent:

You will find this Treasure Chest along the West wall of this station between
the two tracks.

Treasure Chest #14 = Hi-Potion:

You will find this Treasure Chest at the Southwest corner of this station.

Treasure Chest #15 = Mythril Shard:

You will find this Treasure Chest at the Northeast corner of this station.

Area: The Tower
===============

(Note: If you need to get back to this area at a later point in the game
because you miss one of these Treasure Chest you can get back here by going
to Central Station and taking the blue train here. I am not sure when the
blue train first appears but the first time I happen to notice it was when
I reached "The World that Never Was". I am not sure if it shows up anytime
before that but just keep checking back at central station until it is there
and then you can take it to the Tower area.)

Treasure Chest #16, #17 & #18 = (#16) Potion, (#17) Hi-Potion & (#18) Ether:

When you start this area you will see one Treasure Chest (#16) near some
bushes to your right and the other two (#17 & #18) near some bushes a bit
farther to the left.

The Tower: Entryway
====================

Treasure Chest #19 & #20 = (#19) Ether & (#20) Mythril Shard:

When you first enter you will see the first Treasure Chest (#19) along the
wall to your right and the second Treasure Chest (#20) is hidden under the
staircase.

The Tower: Sorcerer's Loft
===========================

Treasure Chest #21 = Tower Map:

Inside the big chest at the East side of the room (near the green door).

The Tower: Sorcerer's Wardrobe
=================================

Treasure Chest #22 = Mythril Stone:

South part of this room near the door.

(Note: You can get the ones below during your second visit here to this
location.)

Area: Underground Concourse
===========================

Treasure Chest (#23) Mythril Gem, (#24) Orichalcum, (#25) AP Boost and (#26)
Mythril Crystal:

Enter this area from the "Station Plaza" and go all the way down the ramp
until you reach the wall at the bottom of it. When you reach the wall look
to your right and you will see a Treasure Chest (#25). Go up the stairs to
the right of this Treasure Chest and go down the corridor to your left. Go
down the stairs up ahead and you will see a Treasure Chest (#23) to your
right at the bottom of these stairs. After you get that Treasure Chest go
into the doorway behind you and drop down off the ledge just inside of that
doorway. You should see another Treasure Chest (#24) in the corner to your
left. Go out of the doorway to the right of this Treasure Chest and go around
the corner of the corridor to the left. Go around the corner up ahead at the
top of the stairs and you will see a Treasure Chest (#26) in the corner here
to your right.

Area: Tunnelway
===============

Treasure Chest (#27) Orichalcum and (#28) Mythril Crystal:

When you enter this area you will notice it looks familiar (because you have
been here before). Look to your right (Southwest) and you will see a Treasure
Chest (#27) at the corner of this small area. Follow the corridor South and
after you go around the first corner to your left you will see another
Treasure Chest (#28) in the corner to your left.

Area: Sunset Terrace
====================

Treasure Chest (#29) Orichalcum +, (#30) Mythril Shard, (#31) Mythril Crystal
and (#32) AP Boost:

When you enter this area go to the Western most end of the Tram Tracks and
look East to see a Treasure Chest (#30) at the front door of a the building
on the South side of the tracks. Go East along the Tram Tracks and you will
see about halfway down these Tram Tracks a Treasure Chest (#31) to your left
in a gap between two buildings near a tree. Jump onto the Train and then jump
onto the rooftop of that building near that tree to find another Treasure
Chest (#29). Go to the East end of the Tram Tracks and go up the stairs to
the North. Go around the corner of the building to your left and go up the
alley to your right (North) to see a Treasure Chest (#32) at the end of this
alley.

Area: Mansion Foyer
===================

Treasure Chest #33 = Mythril Crystal:

When you enter this area go towards the glass doors between the two
staircases here and you will see this Treasure Chest near the wall to your
left.

Treasure Chest #34 = Mythril Stone:

When you enter this area go up the staircase to your right and you will find
this at the top of the first part of this staircase.

Treasure Chest #35 = Elixir:

When you enter this area go up either staircase and you will find this
Treasure Chest on the balcony just above Treasure Chest #.

Area: Mansion Dining Room
=========================

Treasure Chest (#36) Mythril Crystal and (#37) Mythril Stone:

When you enter this room you will see a Treasure Chest (#37) to your right in
the corner and a Treasure Chest (#36) at the other side of the room near a
shelf.

Area: Mansion Library
=====================

Treasure Chest #38 = Orchalcum:

When you enter this area you will see this in the corner to your left near
the stairs.

Area: Mansion Basement Corridor
===============================

Treasure Chest #39 = Ultimate Recipe:

When you enter this area go straight and you will see this Treasure Chest to
your left near the wall.