Hi everyone
Thanks for the advice and offers.
I have opened up the crack and there's no way I'm dowelling it!
It was actually 2 cracks, one down the edge and the one you can see.
I was effectively left with 3 openings, these have been filled with PVA (not watered down as I wanted it full strength) and I've wrapped tightly with tape to clamp it.
Fingers crossed this has saved her, if not, she went like a gun while she was alive, shame I didn't get as much use as if have liked.
Will update on Sunday when I'll take the tape off!