The Shadow in the Pond

Softcover by Ron Roy. Munch watched the night swallow up his friend. He shivered, thinking ahead to the day when the water of Shadow Pond would do the same. Nobody knows how deep Shadow Pond is, or why the old man would never let kids swim in it. But there's a shadow of something lurking in its depths, and creatures have disappeared. Now Munch's friend Nick is determined to explore the bottom of the pond. He's bought scuba diving gear, and he's conned Munch into helping him.But suppose Nick dives and never comes up?