PRINTED IN U. S. A.

“Where are you taking our car?” Penny demanded.
Voice from the Cave” ([See Page 21])

CONTENTS

CHAPTER PAGE [1 AN UNINVITED GUEST] 1 [2 STORMY WEATHER] 10 [3 A JADE GREEN CHARM] 19 [4 NO CAMPING ALLOWED] 27 [5 OVER THE AIR] 37 [6 BREAKFAST BLUES] 42 [7 THE BEARDED STRANGER] 49 [8 KEEPER OF THE LIGHT] 57 [9 A SURPRISE FROM THE SKY] 66 [10 HELP FROM MR. EMORY] 74 [11 A MAN OF MYSTERY] 83 [12 CAUGHT BY THE TIDE] 93 [13 A HIDDEN PACKAGE] 98 [14 VOICE FROM THE CAVE] 106 [15 AFTERGLOW] 114 [16 SUSPICION] 122 [17 VISITORS NOT PERMITTED] 130 [18 INSIDE THE LIGHTHOUSE] 139 [19 A LOCKED DOOR] 146 [20 NYMPHS OF THE SEA] 154 [21 THE CARDBOARD BOX] 161 [22 UNFINISHED BUSINESS] 170 [23 NIGHT ADVENTURE] 178 [24 OUT OF THE SEA] 187 [25 A SCOOP FOR UNCLE SAM] 198

CHAPTER
1
AN UNINVITED GUEST

“Mrs. Weems, what can be delaying Dad? He promised faithfully to be home by three o’clock and it’s nearly five now. Unless we start soon we’ll never get to Sunset Beach tonight.”

Penny Parker, in blue slacks and a slightly mussed polo shirt, gazed disconsolately at the over-loaded automobile standing on the gravel driveway of the Parker home. Aided by Mrs. Weems, the family housekeeper, she had spent hours packing the sedan with luggage and camping equipment. Though the task long had been finished, Mr. Parker failed to arrive.

“Your father is a very busy man,” Mrs. Weems responded to the girl’s question. “No doubt he’s been held up at the office.”

“Then why doesn’t he telephone? It’s driving me crazy to wait and wonder.”