The Door to Oldenworld

<h4>Two worlds. One missing dad. Zero chance this sleepover at Grandpa's will be normal.</h4><p>Jack Fynn's dad isn't dead. He's just... missing. At least that's what the Army says. But when a funeral goes sideways and a mysterious stranger on a motorcycle roars into their lives Jack and his twin sister Macy are pulled into something way bigger than they expected.</p><p></p><p>That stranger? Their grandfather Ace-a washed-up semi-pro wrestler with a wild past and one colossal secret: he's a Sentinel-protector of a hidden gateway to a forgotten realm called Oldenworld. And their dad? He didn't die in battle. He vanished through a tear in time-and only Ace knows why.</p><p></p><p>From a time-portal hidden in Ace's basement to a shimmering staircase made of frozen light Jack and Macy are hurled into a breathtaking adventure. But Oldenworld isn't like the history books-it's a land cursed with dark magic a power-mad king and secrets never meant to be unearthed. As mysteries unravel and enemies close in the twins discover their family's legacy runs deeper than they ever imagined.</p><p></p><p>Can Jack and Macy survive the dangers of time-travel and bring their father home or will they become lost in Oldenworld forever?</p>