The Creature in Ogopogo Lake (Boxcar Children Mysteries)

When the Alden siblings visit a lakeside retreat in Canada, they eagerly search for the legendary Ogopogo lurking beneath the water. A mysterious riddle hints at a hidden treasure that could save the retreat, but as strange events unfold and secrets surface, the children must solve the puzzle before time runs out. Adventure and suspense await as they unravel clues and face unexpected challenges by the lake.