The Kane Chronicles, The Red Pyramid

A visit to the museum? On Christmas Eve? A ridiculous idea, thinks Sadie. She only sees her father, the famous Egyptologist Dr. Julius Kane, twice a year anyway - and now he has to drag her and her brother Carter to the British Museum of all places. But her father doesn't want to show them any dusty sarcophagi - he plans nothing less than to summon the Egyptian god Osiris. However, things go wrong, and he gets kidnapped by a creepy, glowing red guy. To rescue him, Sadie and Carter must face the entire world of Egyptian gods. The first part of the Egypt series by Percy Jackson author Rick Riordan.