Filling them with fear

Dealer South – non vul.

Here is your hand as East:

After a long auction, your opponents stopped in game:

What have you learned?

North made a slam attempt but it was unsuccessful due to a mutual weakness in Clubs. The fact that he bid 2♠ before raising Hearts (3♥) reveals that he has neither four-card support nor honor-third in Hearts. Obviously, this didn’t discourage South who, for his part, must have good trumps, strength in Spades and some Diamond support. You were of course expecting a Club lead and are therefore not the least surprised by West’s choice.