The trip to the island was treacherous because of the appearance of the deepcoiler along with a conspiracy against Log - a-log launched by a shrew named Tubgutt .
The deepcoiler is a large monster residing in the lake that terrorises the Guossom .
The trip to the island was treacherous because of the appearance of the deepcoiler , a large monster residing in the lake that terrorises the Guossom , along with a conspiracy against Log - a-log launched by a shrew named Tubgutt .