Rath is trying an incantation to invoke the power of a Talisman (a bug-like amulet). Rath translated the incantation incorrectly into: "By the spirit that guides us all, make me as the beetle strong" and it does not work. When Armon reads it, he says it correctly where the last word is "small" and not "strong". Instantly all four Mummies shrink to the size of cockroaches. In their quest to reverse the spell, Ja-Kal gets swatted by Presley; Nefer-Tina almost gets swallowed by Presley; and Armon gets stepped on by him. Kahti tries to eat the Mummies and swats Nefer-Tina and Armon.
—GusF