Pokemon Crystal walkthrough section
Pokemon Crystal Phase 8: Blackthorn City — Clair
Rising Badge Blackthorn is the last Johto city. Trade the Red Scale here (from the Lake of Rage Normal ) for an Exp.-boost item, then take on Clair at the Dragon gym.
Phase 8 Rising Badge + Elite Four Lance ace Ice Path, Blackthorn, Clair, Dragon's Den, Victory Road, Elite Four, and Lance. 08 / 12 
Dragonite Phase 8 section 2 of 8
Blackthorn is the last Johto city. Trade the Red Scale here (from the Lake of Rage Normal ) for an Exp.-boost item, then take on Clair at the Dragon gym.
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Blackthorn City — Clair
Blackthorn is the last Johto city. Trade the Red Scale here (from the Lake of RageNormal) for an Exp.-boost item, then take on Clair at the Dragon gym. She won't hand over the badge after losing — she sends you to the Dragon's Den to prove yourself.