Martin Wallace - and the gods' lucky charm #589487

Wallace family is a happy family and one of the wealthiest in quiet County Armagh.
Until the story changes.
A curse hits the Wallaces when Martin is only three years old. And his father disappears forever.

Ten years later, Martin is in search of the truth.
A Dark Lord would have snatched his father for a gem. It would all be explained by what, long ago, would have arisen in the place of Martin's house, at number 3 of Mainmatch Road.
But nothing could ever happen without reading the book 'Emain Macha, the hidden truths'. Nothing could be discovered without uncovering the secret passages around Lake Neagh. No journey could ever begin other than through the Mirror-Time Cone that leads into the Land of Totnes.
The truth is enclosed in a sacred gem.
A curse also hangs over the Tworf people. There is something inexplicable that links Martin to that distant past. Some missing link between that past and its future: a prophecy and an amulet.
Why is the present already changing? What is the danger looming over the Tworf people?
Why is the Lord of Darkness looking for him to kill him? What stood, long ago, in place of his house on Mainmatch Road?
Meanwhile, Martin doesn't have much time left to solve three indecipherable puzzles. And he has to do it before he turns his thirteenth birthday.