The Missing Magician. The Time-Jinx Twins, #2

Ozzie is the only cousin Ellie and Kat have ever known, and his guardian, a beloved magician, has literally disappeared. So what if Ozzie's from England in the year 1323? Not a problem when your mom has a time machine. It's good timing: The 12-year-old identical twins are glad to get away from school. Kat is still struggling to make friends, and Ellie has accidentally spread a rumor that turned out not to be true.
So the sisters sneak off to medieval Ackenbury and join a band of musicians and performers to follow the clues. Juggling secrets, lies, a daring rescue, and some really horrible food, the twins learn that family isn't just something you inherit. It's something you'd cross centuries for. A series stand-alone adventure with an emphasis on STEM skills, physics, logical thinking, truth, trust, and the odd twin trick. "An outstanding, fast-paced adventure that beautifully balances lighthearted humor with genuine emotional depth .