The Secret at Lone Tree Cottage

I Miss Tisdale Disappears II The Empty Coupé III The Mysterious Sailor IV Lone Tree Cottage V A Strange Confession VI The Secret Words VII The Clue in the Note VIII The Map IX A Talk with Mr. Tisdale X On the River XI A Narrow Escape XII Two Visits XIII The House Near the River XIV A Setback XV Another Message XVI Uncle Ned on Guard XVII Two Plans That Failed XVIII The Missing Child XIX Mr. Tisdale Learns the Truth XX The Speedboat XXI Outwitted XXII Late Again XXIII The Hounds XXIV The Old Woman XXV The Dana Girls' Triumph