Breath Attack
From Talisman Wiki
Some Dragons make a breath attack before the character's attack is resolved. If a character suffers the effects of a breath attack, he must still resolve the battle or psychic combat unless specifically stated otherwise.
If a character has a Spell or ability that is used when he is about to engage in battle or psychic combat, it is implemented before the breath attack is resolved.
If a character evades the Dragon, he does not resolve the Dragon's breath attack.