Conversation so far:
what are the 10 plagues that happened in egypt
The ten plagues that happened in Egypt are: Blood, Frogs, Lice, Wild beasts, Diseased livestock, Boils, Fiery hail, Locusts, Darkness, Killing of the firstborn.
Why did the plagues happen in Egypt
The Ten Plagues are the disasters God sent the Egyptians when Pharaoh refused to let the Hebrews go free.

Question: in what book are the plagues mentioned
Self-contained rewrite: In what book are the plagues that happened in Egypt mentioned