Possible Clues:

• Most out of the ordinary and unexpected
• Son telephoned during exam -- most unusual!
• Most remarkable mountains in two ways
• Most peculiar couple of saints crossing the mountains
• Most unusual or oddest
• Distance between roads most extraordinary
• Most unusual oven, in two ways
• Most peculiar two streets either side of Dutch house needing no introduction
• Son called during trial — most odd
• How very odd the way the mountains come between one street and the next