Handbrake NOT working after brake overhaul.

[Caskin]

Think I might have shot myself in the foot on this one.
Car was laid up for three months over the winter whilst I carried out some servicing and checks, prior to arrival of spring.
One of the checks was a clean up and check of the brake system.
Carried out in this manner. Handbrake OFF.
1.All calipers removed and supported, pads etc checked all good. Calipers wire brushed to remove loose rust and treated with a rust cure.
2. Discs removed and all corrosion removed, discs buffed up like new.
3. Discs replaced.
4.Handbrake in cabin, manual adjuster eased off. Handbrake shoes adjusted via hole in rear discs.
5.Calipers refitted using new bolts. All discs turned through 360 degrees, no binding, all turned very smoothly.
6.PROBLEM POINT!!! went to into cab to adjust manual adjuster on handbrake only to find, no tension on handbrake, adjuster can be easily moved backwards and forwards.!!!Handbrake not working???

So I'm assuming handbrake cable has become disconnected in some way,

I'm not familiar with the full handbrake system, have I overlooked something?

If the cable has become disconnected can I reconnect relatively easily???

If so how do I access components in order to reconnect??

Somewhat cheesed off thinking I had achieved something, only to raise a problem that wasn't there before I started!!

Any and all advice gratefully accepted. Thanks