Don't know if you're looking for real mummies but,
Elizabeth Peters
The Amelia Peabody series
It's older and and PG at it's worst but it's a really great historical mystery series that is good for a few giggles and is really well done. Elizabeth Peters is also Barbera Michaels (so it's not exactly young and hip) but I really like the series. It's a long series and the most recent ones involve the second generation of characters.
The first one is Crocodile on the Sandbank
From
Amazon:
Elizabeth Peters's unforgettable heroine Amelia Peabody makes her first appearance in this clever mystery. Amelia receives a rather large inheritance and decides to use it for travel. On her way through Rome to Egypt, she meets Evelyn Barton-Forbes, a young woman abandoned by her lover and left with no means of support. Amelia promptly takes Evelyn under her wing, insisting that the young lady accompany her to Egypt, where Amelia plans to indulge her passion for Egyptology. When Evelyn becomes the target of an aborted kidnapping and the focus of a series of suspicious accidents and mysterious visitations, Amelia becomes convinced of a plot to harm her young friend. Like any self-respecting sleuth, Amelia sets out to discover who is behind it all.