More bizarre random mail

So,  I'm about halfway through this mountain of mail from my youth and I found this which made me laugh out loud. Three crates of hand-written corresepndence came down from the attic a couple of weeks ago and I've been re-living my teens and early twenties ever since.

It simply reads ...

In absentia

All my love

The Beastmaster ....Grrrr

Dated 17th May 1983.

I have absolutely no idea who the Beastmaster is / was nor what they were absent from.

If you answer to this description , do get in touch !