Volac

Valac (also Ualac, Valak, Valax, Valu, Valic, Volac) is the mighty Great President of Hell, having thirty legions of demons under his command.

Valac is said to give true answers about hidden treasures; he reveals where serpents can be seen, and delivers them harmless to the magician. He is said to appear as a small poor boy with angel wings riding on a two-headed dragon.