1.salamander

A salamander is an animal that looks rather like a lizard, and that can live both on land and in water.

2.smoulder

The wrecked rocket has smouldered for several hours.

3. tangerine

A tangerine is a small sweet orange.

summary:

Harry told Ron and Hermione the Nick's invitation. The students stayed in the common room for the heavy rain. A salamandar which had eaten some firework taken by Fred made a big mess.