Write a farewell invitation email to your colleagues. Invite them to farewell party to your boss. Don't forget to inform them when and where
nine is leaving! Come and say goodbye at a paella night at my place [address], [day and time]. 
Paella and pinata are provided, but it would be appreciated if you could bring a plate of nibblies to contribute. BYO alcohol. 
It would mean a lot to her if you come and express your best wishes. Let me know before Friday if you can make it.
Cheers,
ABC