The Black Library and Forge World will be holding their The Horus Heresy Weekend in May.
From the announcement:
Saturday 18th and Sunday 19th May 2013
A fantastic two day Horus Heresy experience, held in the lavish surroundings of the Nottingham Belfry Hotel.
This two-day event is the ultimate getaway for fans of the Horus Heresy. Tickets are available in strictly limited numbers to create an exclusive and personal event.
All Weekender tickets include full access to both days of the event and a goody-bag upon entry, including a programme with exclusive gaming content, stories and Horus Heresy rules.