Captain Johnson handed the papers to Mr. Drew. "Please look at these," he requested. "If they have any bearing on this case-"

Felix Raybolt jumped from his chair. "Don't read them! I admit I paid small sums to inventors and promised royalties I never sent, though I sold their ideas for large amounts. I'll give rest.i.tution to every one of them!"

"Felix! Felix!" his wife screamed. "Don't give in!" She glared at Nancy. "Oh-look at all the trouble you've caused!"

Raybolt appeared not to hear her. "I'll pay everyone even if it takes my last cent! I'll do anything if only you won't send me to prison!"

"Don't do it! Don't do it!" Mrs. Raybolt pleaded. 'We'll be ruined!"

"We'll be ruined if I don't," her husband muttered, "because I'll have to go to jail."

Mrs. Raybolt sank into a chair, covered her face with her hands, and began to sob. For an instant Nancy felt sorry for her, then changed her mind, as the woman burst out:

"We had the whole thing so well planned. No loopholes. Then this Nancy Drew has to come along and spoil our lives."

Nancy, her father, their friends, and the police captain looked at Mrs. Raybolt in astonishment. The officer leaned forward and asked, "Are you admitting that you and your husband planned this whole unscrupulous plot?"

"Keep quiet!" Raybolt stormed.

But the damage had been done. Little by little a full confession was obtained from the husband and wife about the plot they had devised to pile up a fortune from insurance, then vanish.

Raybolt finally admitted that he had rigged up a television set on the first floor to trigger the explosion by remote control. He had planned that it would go off when Joe Swenson arrived for the appointment.

"But Swenson was twenty minutes early," Mr. Raybolt growled, "so I had to go ahead and cause the explosion without getting the papers out of the safe. I knew I could come back later for them."

Further questioning proved that Mrs. Raybolt was responsible for having the two detectives track down the inventor and put the blame on him.

At the end of the session, everyone in the room showed complete disgust for the Raybolts.

"All their conniving at the expense of other people," Nancy thought.

Both the Raybolts were held. They were allowed to telephone for legal counsel, but even before the lawyer arrived, the husband asked for a checkbook from Mrs. Raybolt's purse and wrote out a check for several thousand dollars to the order of Joe Swenson.

"If you'll look among those papers Nancy Drew saved," the estate owner said, "you'll find one that's a receipt for the sale of his invention to the Streeter Corporation."

Mr. Drew looked at the receipt and commented that the amount of the check was five hundred dollars less than the sum on the receipt.

"I received five hundred from Mr. Raybolt in cash," Joe Swenson spoke up. Then, without smiling, he added, "Thank you, Mr. Raybolt, for this check."

Mr. Drew, meanwhile, had continued looking through the papers Nancy had rescued. He frowned angrily, but said nothing until he came to a bulging envelope which he opened.

"These are the plans stolen from my client, Mr. Simpson," he remarked. "I will take them, Mr. Raybolt. And, Captain Johnson, I think you had better keep the rest of these papers to see that the other inventors are properly reimbursed."

"I'll certainly see that they are," the officer declared.

All the visitors but the Raybolts left headquarters. Ned offered to take the still-stunned Joe Swenson home in order to break the good news to his wife. Honey, of course, would be asleep.

"Suppose you come to dinner at our house tomorrow for a victory celebration, all of you," Nancy invited. "Ned, could you-"

"Yes, I'll gladly drive the Swensons over," he said.

Bess chortled, "We wouldn't miss it for the world!" and George nodded vigorously.

The following day was an exceedingly happy one at the Drew home. The Swensons wore broad grins, and Honey's mother said, "We owe all our happiness to you, Nancy."

"I think you owe it to the fact that your husband dropped the diary," Nancy said, smiling.

"Yes," said George. "If it hadn't been for the clue Nancy found in it, she never could have located the owner and helped bring you all together."

As the gala dinner ended, Mr. Swenson mentioned that Baylor Weston was promoting him to a responsible position in the experimental division of the factory at a large salary.

"That's marvelous," said Nancy.

"You have been so kind to us," Mrs. Swenson spoke up, "that we want to show our appreciation in a more material way."

She presented each of the girls with a tissue-wrapped package. "It isn't much," she said apologetically.

"Indeed it is!" Nancy cried, unwrapping a beautiful purse.

As she opened it, the girl detective found a note inside. The message read: "Will you please keep my signet ring to remind you of your adventure and of our deep grat.i.tude for all you have done for us. Joe Swenson."

"I'd love to, of course," Nancy said, a little catch in her throat. "The ring has meant a great deal to you. Now it will to me."

Bess and George likewise received purses and Ned a wallet. They thanked the donors heartily. A short time later the inventor and his family left, after promising to call frequently on Nancy and her father.

The young detective felt a glow of pleasure as always when she made lasting friends of people she had helped. But she did not know in what strange way this would occur soon again. Much to her amazement, in her next adventure, Nancy's Mysterious Letter, she was to help someone with a name like her own who was in great trouble.

"It really was a gorgeous party!" Bess sighed blissfully. "Such fun!"

"Say," said Ned, "I have a notion to start a diary of my own!"

"Why don't you?" Nancy asked lightly.

She became conscious that Ned's eyes were looking straight at her. "I will if I can fill most of the pages with entries of dates with you."

Nancy evaded the question. "I enjoyed your help in solving the Swenson mystery. Maybe we'll soon find another one we can work on together."

end.