Subject/Tag - Caves/Underground

All Around Weekly

Lost Underground; or, A Week in the Dark

The Boys of New York Pocket Library

92. Lost Under Ground; or, A Week in the Dark
101. The Cavern of Death; or, The Maiden Avenger
118. Lost in the Sewers; or, Adventures Beneath a Great City
180. The Haunted Cave; or, The Land of Wonders
182. The Hidden Cave. A Legend of the Ohio
217. The Wizard of the Deep; or, The Wonderful Ocean Cave

The Boys' Star Library

57. The Cavern of Death; or, The Maiden Avenger
72. Lost in the Sewers; or, Adventures Beneath a Great City
73. The Wizard of the Deep; or, The Wonderful Ocean Cave
79. Lost Under Ground; or, A Week in the Dark
98. The Haunted Cave; or, The Land of Wonders
134. The Hidden Cave. A Legend of the Ohio

Young Sleuth Library

19. Young Sleuth's Dark Trail; or, Under the Pavements of New York. A Story of Strange Adventures in the Great City
38. Young Sleuth's $100,000 Game; or, Monte Carlo in New York. A Mystery under the Pavements of New York
100. Young Sleuth in the Sewers of New York; or, Keen Work from Broadway to the Bowery
129. Young Sleuth and the Copper Mine Mystery; or, The Detective's Underground Clew. A Thrilling Story of the Smugglers of the Northwest