A happy ending?

A camel and a dog
Tired of performing
Every night
At a circus.
Escaped.
The camel walked
On top of it
Sat the dog
guiding the camel.
They found the valley
Seen on a map
In the window
Of a book shop.
They lived happily
Till the died.
The dog´s tongue
Stung by a bee
Could not swallow.
The camel died too
When the water
In the lake
Got brackish.