Erased From Memory — Diana O'Hehir

As they have so many times before, Carla Day and her Egyptologist father are visiting the museum--and the ancient coffin lid he discovered years ago--when a fellow museumgoer falls to the floor, choking. Dr. Day rushes to pry off the poor man's tie, but instead of getting praise, he gets charged with murder for strangling the man--and accused of faking his Alzheimer's.

The charges are dropped when it's learned that the museumgoer isn't dead, but comatose. And when he vanishes, Carla begins to suspect that her father's faulty memory may be the only link between a millennia-old Egyptian death and a present-day California one.