Managed to get across the lake - I had to replay the age, and all of the path appeared, so I must have gone wrong originally with the 3 settings somewhere.
However (there always seems to be a 'however'), I cannot seem to get the perishing Bahro to take my excellent drawing on the slate to the keep.
He takes it away allright, though he doesn't take it to the keep.
Is there a trick to the drawing? - I make it is large as possible given the constraints of the slate.
I have tried it with and without what looks like half height rectangle along the edge of the lower of the 2 rectangles, but the stubborn Bahro refuses to take my superbly drawn slate to the Keep.
petert