I quite agree! I have just found this website, for some other reason, and as this was such an intreaguing question, thought I'd see if anyone has got it. We think it's something to do with the Magic Roundabout, as Ermintrude used to carry a satchel. Please let me know if I'm close!
hi jadeller
try seasrching group theray on AB and you will find lots of clues - and to all intents and purposes the answer from sniffa.
Search bar is down the left hand side.
you are not loking for 20 letters. You are looking for a detective - when you find him this will give you the name of one of his cases. Too easy otherwise!