"Let's get to those diamonds," you cry. And you run toward the points of sparkling white light. At the same time you begin choking on thick sulphurous fumes. Behind you, thunder rumbles

from the ground!Dr. Vivaldi has reached the first hill of dia-

monds. "They're the real thing!" she calls, sifting them through her hands. "Within a few yards of us are more diamonds than are worn by all the people on earth!"

"Look!" you shout, for now the fields of white clay are bubbling like boiling soup. Pale yellow gases rise from cracks in the ground.

"We are trapped." Dr. Vivaldi's voice sounds far away. "By the time the claybeds stop erupting, thesefumeswill. . .put...us...to... sleep." She coughs and staggers a few feet up a small hill of diamonds. "Quick, over here!" she calls.

Gasping, you stumble up the hill and collapse in a mound of diamonds. Dr. Vivaldi breathes deeply. "We're safe for the moment This hill is well above the toxic gases." Her voice is drowned out by the ground thunder.

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