2 Alternative solution and lame attempt at explanation.
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I would go with:

The worms were stolen, taken to John's house and very nearly eaten.

Alternatively,

The worms were stolen, taken to John's house and almost successfully eaten.

I don't see any good way to get around implying the attempt, rather than stating it.

I would go with:

The worms were stolen, taken to John's house and very nearly eaten.

I would go with:

The worms were stolen, taken to John's house and very nearly eaten.

Alternatively,

The worms were stolen, taken to John's house and almost successfully eaten.

I don't see any good way to get around implying the attempt, rather than stating it.

1
source | link

I would go with:

The worms were stolen, taken to John's house and very nearly eaten.