He had better bring men, to take it to his museum.

When it is there, Mrs.Jasher can then explain how it came to be in her garden." Without a word Lucy set off, walking quickly, anxious to fulfill her mission and gladden the heart of her step-father with the amazing news.
Archie and Mrs.Jasher were left alone, and the former lighted a cigarette, while he tapped the mummy case, and examined it as closely as the pale gleam of the moonlight permitted.

Mrs.Jasher made no move to enter the house, much as she had complained of the cold.

But perhaps she found the flimsy skirt of the tea-gown sufficient protection.
"It seems to me, Mr.Hope," said she very tartly, "that you suspect my having a hand in this," and she tapped the mummy coffin also.
"Pardon me," observed Hope very politely, "but I suspect nothing, because I have no grounds upon which to base my suspicions.

But certainly it is odd that this missing mummy should be found in your garden.