Skip to the adventure

ALL ABOARD THE IMPOSSIBLY POSSIBLE

A little tram.
A very big
adventure.

WELCOME TOMOSSJAW
EXPRESS
Choose an adventure
Bella and Otto welcome the river tram as giant Mossjaw leaps beside the station
RIVER TRACKS / BIG SPLASHES / SMALL SURPRISESFirst stop: Bell Bridge

Bella knows the stops. Otto knows the wheels. Mossjaw is much too big for the carriage — but never too big to come along.

THE BOARD SAYS ADVENTURE

Four stops.
No ordinary route.

Pick a station and step into its own little puzzle. Stay as long as you like; this timetable runs on curiosity.

PLATFORMDESTINATIONREADY WHEN YOU ARE
Bella reaches for a brass bell while Mossjaw watches beside Bell Bridge
Bell Bridge
NEXT ADVENTURE

Bell Bridge

Follow a three-bell greeting.

Step into this adventure
Bella works the chunky levers in the river station’s signal booth

BELLA’S SIGNAL BOX

Set a route.
Give a little
all-aboard.

A pretend departure needs a destination, a green lamp and one visual bell signal. Changing the destination clears the bell.

The lamp is red. The tram waits at the platform.

Visual signals only. No sound or real transport is controlled.

THE BEST SEAT IS A WINDOW SEAT

Look out.
There’s a whole river.

The turquoise river and Mossjaw seen through the tram’s brass window frames
River bends, brass windows and one very enthusiastic travelling companion.
Bella holds a ticket punch beside a carriage window and the enormous fish

CONDUCTOR / COLLECTOR OF POSSIBILITIES

“There’s always
another way round.”

Otto shows a fish-shaped spanner in his cosy brass-and-plum workshop

MECHANIC / MAKER OF UNLIKELY THINGS

“It only needs
one tiny adjustment.”

MEET THE BIGGEST REGULAR

Some friends
don’t fit
through the door.

Mossjaw considers every window a perfectly good front door.

Mossjaw greets the tiny platform with a huge friendly face and a bubble on its nose
A fictional fish with a very real sense of occasion.

OTTO’S RATHER PARTICULAR EQUIPMENT

Every odd little thing
has a job to do.

A brass ticket punch, bell spanner, turquoise button and coral wheel on velvet
The river tram winds through lotus gardens, cliffs and magical bridges

JUST ROUND THE NEXT BEND

The river never
runs out of
“what if?”

What if a bridge was made of bubbles? What if a station grew from a lily? What if the biggest passenger travelled outside?

Try the bubble crossing

WHEN THE ADVENTURE COMES HOME

A cup of tea.
A tale to tell.
One more splash.

No score to chase, no clock to beat. Each stop is a small story you can restart whenever you fancy another go.

Bella and Otto share tea in the carriage while Mossjaw looks in through the window
“Next time,” says Otto, “we’re bringing a bigger teapot.”

A LITTLE NOTE BEFORE YOU BOARD

Take your time.
Try things.
Start again.

  1. Choose any stop.The four stories are open from the start.
  2. Read the little clue.Every puzzle explains what to try.
  3. Use the buttons.Mouse, touch and keyboard can all join in.
  4. Come back for another go.Progress lasts in the current page; restarting is always allowed.

ASK AT THE PLATFORM

A few things
you might
be wondering.

Is Mossjaw Express a real journey?

It is an original fictional story world with little browser puzzles. There are no real train services, fares or bookings.

Do I need an account or a ticket?

No. All four adventures are available without signing in, payment or a ticket. The ticket shapes are part of the story.

Are there prizes or purchases?

No. These are small story puzzles with no cash stakes, prizes, paid items or purchase process.

Will the games remember where I got to?

Only while the current page stays open. Leaving or reloading starts the puzzle again. The site does not save a player profile.

Can I play without sound or movement?

Yes. The clues and results are shown in text and visual states. No sound is required. The site respects your device’s reduced-motion setting.

THE STATION POSTBOX

A small note
can make
a big splash.

Adults can ask about a puzzle or report a website problem here. Bella and Otto live in the story; this note goes to the website’s enquiry record.

TO: THE MOSSJAW EXPRESS WEBSITE

This form is for adult enquiries. Younger travellers should ask an adult to write. Keep private information about children, passwords and payment details out of the note.

A saved note returns a reference. It does not book a journey.