At a Small Pond
There is a lot of water on the ground.
A placid pond is here, inviting you to take a refreshing drink.
A domesticated pony, beast of burden to many, stands here.

A pony is dead! R.I.P.


* R W C>bury all
You begin to dig a burial mound over the corpses.

You finished making a burial mound.

* R W C>look
At a Small Pond
There is a lot of water on the ground.
A small green mound rises from the ground.

* R W C>exa mound
You'll have to dig it up to see what is inside.

* R W C>open mound
You start digging up the earth from the mound.

You finish digging up the mound and uncover the corpses.

* R W C>exa mound
mound (here) : 
Nothing.

* R W C>look
At a Small Pond
There is a lot of water on the ground.
A placid pond is here, inviting you to take a refreshing drink.
The corpse of a pony is lying here.
A desecrated mound rises from the ground, its contents scattered.

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Oh, and this works for burn too.