His lecture is to be replaced by a tribute event to include just about every relevant star name you could wish for, which is the least one might expect.
But you can't conjure a Seamus Heaney however fine the materials you try to do it from and a Wednesday night in November is no time to be getting the last coach home from London and so, to whoever is due to sit in B33, I'm sorry I missed you.
I'm sure it will be a wonderful evening.