through a magazine on oceanography when footsteps sounded from the direction of the office.
After exchanging perplexed glances, the boys tiptoed across the waiting room and pushed through the door.
Inside they saw an opening trap door beyond the dental chair. A man emerged with his back toward them. He lowered the door and turned around.
The boys gaped. The face was horribly deformed. The eyes bulged. The nose was squashed. A puffy tongue hung limply from a frothing mouth!
CHAPTER II
The Witch Masks
T HE horrid-looking creature placed a thumb under his chin and gave a jerk upward. His face came off!
âItâs a mask!â Frank cried.
âOnly plastic and paint!â Joe marveled.
âDoctor Burelli at your service.â The man introduced himself with a low bow.
He was of medium height with short, uncombed brown hair, blue eyes, horn-rimmed glasses, a prominent nose, and an expanding waistline. He smiled easily.
âQuite a start for our visit to Griffinmoor!â Frank mumbled.
âI didnât mean to frighten you,â the dentist said seriously. âIâm an amateur actor, and secretary of the Gravesend Players in town. I make masks for our company in my basement workshop. The trap door allows me to work on them betweenpatients. I believe one of you has a toothache. Let me look.â
Joe sat down in the dental chair, opened his mouth, and pointed to the sore spot.
âWell,â the dentist said after an examination, âYou havenât shown much wisdom about that wisdom tooth. The wisest thing would have been to have had it extracted long ago.â
He chuckled at his own witticism. Amid a barrage of comic comments, he gave Joe a local anesthetic and waited for it to take effect.
âWho are you fellows?â he inquired. âI notice an American accent.â
Frank explained that he and Joe were two Americans who did detective work at home in Bayport. He concealed the fact that they were in Griffinmoor to deal with Professor Rowbothamâs mystery. âNo sense in gabbing too much,â he thought.
Frank was the cautious Hardy. Joe was more likely to leak a secret, but just now Joe couldnât talk.
âSo youâre detectives,â Burelli said. âYou must know about masks.â
âWe use disguises from time to time,â Frank admitted.
The dentist clamped his forceps around Joeâs tooth, applied leverage, and extracted it.
âNo mystery here,â he declared. âYou see the offender before you. Now you can rinse.â
A few minutes later Joe got out of the dental chair, rubbing his jaw.
âSince youâre detectives,â Burelli went on, âperhaps youâd like to see my collection of masks in the basement.â
The boys said they would, and Dr. Burelli lifted the trap door, wedged it open, and descended the ladder. Frank and Joe climbed down after him.
They found themselves in a gloomy room lighted by a single overhead bulb. A long bench held a series of masks of well-known people. They recognized Winston Churchill, General Douglas MacArthur, and Marilyn Monroe.
âA few of my friends,â Burelli said airily.
âThose masks wouldnât scare anybody,â Joe observed.
The dentist beckoned to them and led the way to another table against a side wall. Four horrid faces with distorted features and misshappen heads glared at them. These masks were as hideous as the one Burelli had worn.
âWhat an ugly bunch!â Joe exclaimed.
âWorse than the roguesâ gallery,â Frank added.
The dentist looked pained. âPlease! Youâre talking about the masks I love! Anyway,â he said, âI make horror masks for my own amusement.â
âBoy, Iâd like to have these on Halloween,â Joe said. âNobody could find anything scarier.â
Suddenly Burelli became serious and mysterious. âIf you think that, look at these!â
He moved to a dark corner that