Breathless with fright, Phyl pointed off to starboard. The others paled.
An enormous wave was sweeping across the lake, straight toward the
ketch!

"Jumpin' jets!" Bud gulped. "It's like a tidal wave!"

The boat was already rocking under the swells that preceded the oncoming
huge breaker.

"Quick!" Tom yelled. "Grab life jackets while I start the engine!"

The four leaped into action. Every instant the terrifying wave rushed
closer! By now it was a twelve-foot wall of water!

Tom and the others had just put on the jackets and the engine had barely
gunned into life when disaster struck. The mammoth wave swept up the
_Sunspot_ and heeled it far over into the trough like a toy bark. The
next instant a cataract of water poured over the deck with stunning
force!

"We're going under!" Phyl screamed.

All four were swept overboard in the maelstrom! Under the smashing
impact of the water, the ketch's mainmast bent and groaned. A moment
later came a crack like a gunshot. The mast broke off, hung teetering by
shreds, then toppled into the water. As it fell, the mast struck Sandy a
grazing blow on the head!

"Sandy!" Bud cried fearfully as he struggled in the swirling torrent.