“Oh, yes,” declared Dorothy. “I’m almost sixteen, anyhow. And I’ll wear one of sister Ethel’s dresses, and do my hair up high. I’ll wear a hat of hers, too, one of her prettiest ones.” “Oh, not too fancy, you know,” warned Jack. “You must dress plainly.” “All right; I’ll wear a small hat and a dotted veil. Oh, I’ll look grown up; never fear.” “Jeanette will, too,” said Betty; “she looks older than she is, anyhow. What’ll you wear, Jean?” “I’ll wear one of Mother’s gowns,” said Jeanette, smiling. “She’s so small and slender, her things just about fit me. Black, I think, with white collar and cuffs.” “I’ll wear a long cloak,” said Betty, “and a thick, dark veil, so Grandpa can scarcely see my face at all.” “And glasses,” said Jack. “I’ll get you a pair of dark spectacles, so he won’t see your eyes at all. Now let’s write the letter.” Then, all suggesting, but Jack doing most of it, the following letter was composed, and was copied by Jeanette: Mr. William Irving, _Dear Sir_: Although I have been in more fortunate circumstances, I am now quite poor. I desire a position as secretary, and I apply to you, because my great-uncle Roger Arundel used to be in your class at college, and I have often heard him speak of your kind heart and generous disposition. I will call at your office, to see you about the matter, this afternoon at three o’clock. Please let me speak to you, even if you cannot give me a position. Yours truly, Frances Arundel. “Was there a Roger Arundel in Grandpa’s class?” asked Betty, looking admiringly at the letter. “I don’t know of any,” said Jack; “I made up the name.” “Then of course there wasn’t,” said Betty. “Why didn’t you choose a name from his class list?” “Oh, I didn’t quite like to do that. It didn’t seem right. But it won’t matter. You girls will have to manage the Roger Arundel item. Now, are you sure you understand your parts? Come on, let’s rehearse. I’ll be Grandpa.” They rehearsed for an hour or more, and declared they understood their parts perfectly. “But you must disguise your voice more, Betty,” said Jack. “Talk as if you had a cold in your throat.” So Betty tried again and succeeded in achieving a hoarse, harsh whisper. “That’ll do,” said Jack, approvingly. “Talk like that and you’ll be all right.” At last the first of April came, and the other girls came over to Betty’s to start off together on their escapade. Mrs. McGuire had been taken into the secret at the last moment, thus having had no chance inadvertently to give a hint to the unsuspecting victim. She helped the three girls to make themselves look as much as possible like full-grown young ladies. And, indeed, the fact that they all wore long dresses and had their hair done up high so changed their appearance that little further disguise was necessary.