The Mummy Case by Elizabeth Peters

A witty, fiercely independent Egyptologist and her taciturn archaeologist husband return to the Nile with family and colleagues when a dig yields a mysterious mummy case tied to theft, murder, and international intrigue; as antiquities dealers, jealous rivals, and hidden identities complicate the excavation, she balances maternal mischief, sharp deduction, and comic stubbornness to unravel a long-buried conspiracy and protect those she loves.

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