Explore "The Young Volcano Explorers" by Edward Stratemeyer on Textopian. Read with annotations and highlights.
At first both boys could see but little, for the room they had entered was semi-dark, while outside the sun was shining brightly. But gradually their eyes became accustomed to the gloom and then they made out a staircase running to a floor above.
"Where is he? " demanded Sam, catching the _volante_ driver by the arm.