Returning from Oslo

Hi all.

Might have a job next year which involves travelling all over Europe with an artic
and ending up in Oslo.

Can anyone tell me the best way back to London from there. Plus roughly
how much it would cost on the ferrys.

Thanks

There is a boat from Brevik, about an hour from Oslo that goes into Immingham a couple of times a week, but the way I have used when coming into the south is run down to Gothenburg and shipped via DFDS into Tilbury.
Don’t know the cost and if you want a beer on the boat take some on with you as it is a dry boat.