"I dare say it's twenty years or more since my father showed me how this works. I've almost forgotten the trick. Which side was it, now? Right or left? Why, of course, I remember! You push both together. It's rather stiff. Right-o! It's moving. Oh, good biz!" A thin panel of wood forming the back of the recess had slid aside, revealing a small door with a keyhole. It refused to open, and was evidently securely locked. "With your permission, Miss Marsden, we shall have to do a little burgling," remarked Captain Ledbury. "Perhaps my penknife will serve as a 'jemmy'." "Oh no, Uncle Frank!" cried Githa. "Don't force it! Wait half a moment. I've got it here in my pocket. Look! Try this--the key that I found inside the panel at the Grange. I've kept it most carefully, in case I should ever find what it belonged to." "I believe you've solved the problem!" murmured her uncle. All watched eagerly as Captain Ledbury made trial of the little key. It fitted exactly. The rusty lock creaked as it turned, and the door flew open. The space revealed was very narrow; there was only just room for a fat envelope that was wedged inside. Uncle Frank tore the letter open with impatient fingers. It contained a pile of bank-notes and a sheet of writing-paper. He studied the latter attentively for a moment or two. Then he turned to his niece. "This concerns us very much, Githa. It's your grandfather's last will, duly witnessed, and apparently in good order. You and Cedric and myself benefit considerably. It's a lucky day for the three of us. I shall keep this packet, and place it at once in the hands of the solicitor who is named as executor." "So Grandfather hadn't forgotten us, after all!" "Not a bit of it. You'll come in for a very nice little fortune some day, young lady! This is better than winning clocks and medals!" "I never won anything in my life before. The key has proved my mascot this afternoon." "When one's luck turns, it often comes with a rush," chuckled Uncle Frank. "Bob Gartley really told the truth for once in his life. He'll deserve the five pounds I promised him." "He shall have it, though I'm afraid the scoundrel will only squander it at the 'Dragon'. Perhaps we can think of some way of helping the wife and children. I wish I could persuade him to enlist--the discipline of the army is just what he needs. I remember him very well when he was a lad, and he had the elements of good stuff in him then. Pity it's all run to waste. One never knows; after this illness a completely fresh start in life might make a new man of him. It's wonderful what serving their country has done for some of our fellows; in their case the war has been a blessing in disguise." "Oh, it would be glorious if he'd go for a soldier!" agreed Githa. "Perhaps he will if you talk to him, and tell him about what's going on at the front."