Available at Amazon:
Two dads, five siblings, and goggles! Grim Doyle has always known his life was not exactly "normal", and things get even more curious when he discovers a set of stones that sweep him and his family to the fantasy, steampunk world of Verne - a place they had escaped from years ago. Now that they've returned, Grim and his siblings hide from the evil Lord Victor and his minions. And while learning about Jinns, Mystics, and the power of absinth they try to discover who is trying to kill them with the deadly Scourge.
David's website is http://davidhburton.com. Good luck David!