First, scrape off as much wax as you can using a plastic lifter, the kind you use on teflon pans. If there are indentations in the wood, use a smaller tool, even a wooden toothpick for small spaces. Try not to use metal utensils which will damage the wood.
Once you have removed as much wax as possible using this method, remove the rest with hot water and soap. Fill a bowl with the hottest water you can tolerate using rubber gloves. Dip a cloth in the water and wring out the cloth before applying it to the wood.
The heat in the cloth will melt the wax into the cloth. Keep doing this until the wax is gone. Dry the wood immediately with a dry cloth.
When the wood is completely dry, apply a coating of oil or furniture polish depending on what type of finish is already on the mantle. If the mantle had a varathane coating, the oil or funiture polish won't be necessary. Dump the water from the bowl outside to keep the wax out of your drains Dave.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.