Торфид прислал приглашение только что 

I'd like to invite your group to Althing in Braniewo. We are very happy that we can fight together, eat and drink together and do many other things together 
It's a honor to us to invite your group one more time to be our guests. 

Please write me few things:

how many people from your group can arrive (fighters, bowmen, women, children)?
how many tents will you have?
do you want any special things?
do you need official ivitation?

Thorfid from Nidhogg