responsible.â
âYes. The hangar is out of the way,â Joe agreed. âHe might have sneaked in here any time, especially during the night. He knew weâd go over Graftonâs plane sooner or later.â
âThis proves that our movements are being watched a lot more closely than we realized,â said Frank soberly, pocketing the note. âI think itâs time to check with Dad. Letâs go!â
The boys learned that Graftonâs plane had indeed been broken into and would be more carefully guarded in the future. Back in their motel room, Frank put through a long-distance call to Bayport.
âHello, Mother! ... Yes, weâre all right. ... Everythingâs fine. Weâre enjoying ourselves very much.... Can you put Dad on, please? ... Oh!â
Covering the mouthpiece with one hand, Frank told his companions, âDadâs case has taken him out of town and Mother doesnât know where to reach him. He left us a message.
âGo ahead, Mother,â Frank resumed. For the benefit of Joe and Chet, he repeated the note as Mrs. Hardy read it to him.
âHold up work at Blythe.... Proceed to Los Angeles.... Investigate Graftonâs business and interview his family.... Hope to see you before long. Dad.â
The next morning as the three boys loaded their rucksacks, Frank grinningly whispered some order, then they went to the motel office.
âLeaving so soon, boys?â the manager inquired.
âYes, the country doesnât agree with our friendâs appetite,â Joe replied.
âNo place like home,â Chet Morton added.
âIf weâve left anything behind, will you send it to our address in Bayport?â Frank asked.
âCertainly. Sorry you donât like it here.â
It was not until the three friends had taken off from the county airport that the subject came up again. Then, with a grin, Joe said, âDid we look dissatisfied enough? I was trying to play my part, but I almost burst out laughing instead.â
âI think that manager will remember us all right when somebody asks him about us.â Frank chuckled.
âHeâll say we were in a mighty big hurry to leave Blythe and go back East,â Chet joined in the joking.
âWhich is just what we want,â Frank declared. âMeanwhile, weâll be in Los Angeles digging up clues!â
The flight was a brief one. Soon Frank, Joe, and Chet were installed in a spacious room in one of the cityâs older downtown hotels. While the brothers unpacked, Chet fussily inspected their quarters.
âGood solid metal fire escape,â he announced, glancing out one of the windows.
Chet announced he was going on an errand and went out. An hour later, as Frank and Joe were discussing a plan of action, he returned.
âNo more detective work for old Chet today,â he announced brightly. âHere we are in Los Angeles, the movie capital of the world. I donât know about you fellows, but Iâm going out to a lot and watch them make movies. Behold!â
With a flourish he produced three passes to a motion-picture lot. âI called up an uncle who lives here in town,â he explained. âWhat about it, fellows?â
âYou go ahead, Chet,â Frank suggested. âJoe and I will see what we can find out about Grafton and Wetherby at police headquarters, and show the warning note. Meet you back here later.â
At headquarters the Hardys spoke to the detective sergeant who had been assigned to the case. âWeâre really stumped on this Grafton disappearance,â the man admitted ruefully. âNothing to go on. And we donât know much about Wetherby except what the Blythe police could give us.â
âDo you think Mrs. Grafton would see us?â Frank inquired.
âOh, yes. Poor woman, sheâll be grateful for your interest. You might stop at Graftonâs electronics plant, too. A manager operates it