public function masteryPage($masteryPageId)
	{
		if ( ! isset($this->info['masteryPages']))
		{
			// no rune pages
			return null;
		}
		$masteryPages = $this->info['masteryPages'];
		if (isset($masteryPages[$masteryPageId]))
		{
			return $masteryPages[$masteryPageId];
		}

		return null;
	}