CHAPTER IV.
The Fog lifts .-- A Whale in Sight .-- Craggy Black Mountains capped with Snow .-- A Novel Carriage for the Big Rifle .-- Mounting the Howitzer .-- A Doubtful Shot .-- The Lower Savage Isles .-- A Deep Inlet.--"Mazard's Bay."-- A Desolate Island .-- An Ice-Jam .-- A Strange Blood-red Light .-- Solution of the Mystery .-- Going Ashore .-- Barren Ledges.

Beds of Moss .-- A Bald Peak .-- An Alarm .-- The Schooner in Jeopardy .-- The Crash and Thunder of the Ice .-- Tremendous Tides.
The rain had now pretty much ceased.

Some sudden change took place in the air's density; for the fog, which had all along lain flat on the sea, now rapidly rose up like a curtain, twenty, thirty, fifty feet, leaving all clear below.

We looked around us.

The dark water was besprinkled with white patches, among which the seals were leaping and frisking about.