From that same chest came a dress and hat which Mrs. Sherman had worn in a tableau years before as a Dresden shepherdess, which transformed Betty into the prettiest little Bo-Peep that could be imagined.
Allison and Kitty, taking advantage of the relaxed rules, slipped up the stairs before going home after school, to look at the costumes lying spread out on Lloyd's bed.
"I think it's a shame that day pupils can't come, too," said Allison, wrathfully. "We're left out all around, for we're not old enough to be invited to Julia Ferris's party. We were going to have a party at our house, but mother and auntie had to go to town to stay all night. Aunt Elise is entertaining some old army officer's wife. So we can't have any fun."
"Don't you think that for a moment!" exclaimed Kitty. "Mrs. Mallard said that Katie might come and stay all night with us. Mother telephoned to her just before she started to town."
A daring thought popped into Lloyd's mind. "Why don't you come to-night? It's a masquerade. You could slip in heah to our room befoah they unmask, and nobody would evah find out who you were. It couldn't be moah fortunately arranged. Little Elise is in town with yoah mothah, and you could easily slip away from Barbry and the cook. You could sleep in heah with us, and run home early in the mawning befoah anybody was up. I'll unlock the doah at the head of the outside stairs, and you can sneak in back way while we are at suppah."
"Oh, how I'd love to!" began Allison, "but I'm sure that mother and Mrs. Mallard wouldn't like it, and--"
"Now, Allison," interrupted Kitty, "you know that nobody ever told us _not_ to come, did they? It wouldn't be disobeying unless we'd been forbidden."
"All sorts of larks are allowed on Hallowe'en," urged Lloyd. "Not a soul outside of the Shadow Club will know who you are, and it will be such fun to set everybody to guessing who you are and where you've gone, when you suddenly disappear."
"Yes, we'll come," said Kitty, seizing Allison by the waist and dancing her toward the door. "I'll take the blame if there is any. Hurry up, old Grandma Prim, we'll have to hustle. We've barely time to run home and eat our supper and get dressed and back here before the affair begins."