No light on Maglock, Dead Mac?

I left my Macbook on last night and open, plugged in. When I got up this morning, the maglock light was flashing green (very odd) and my Mac would do nothing whatsoever - totally cold and silent.
I unplugged it, tried a different wall socket, but still no luck. Somewhere along the line the maglock light went dead. It still does not light up.
The battery lights all come on, and I've tried a reset without the battery in, tried resetting the PRAM, but nothing works so far.
My MacBook is currently an expensive paperweight - any ideas please?

Disconnect the power adapter and remove the battery. Hold down the power button for 10 seconds. Reseat the battery and reconnect the power adapter.
Press and release the power button to turn on the computer.
After you release the power button immediately press and hold appleoption+PR until you hear the start up chime twice. Release the keys once you have heard it twice.
If you do not get any sort of response contact Applecare and request service.

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No light on Maglock, Dead Mac?

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