Let me show you a bidding sequence.
LHO 1 ♥ .....1 ♠ from partner....RHO pass.... You pass
LHO double (reopening)…partner pass......RHO pass!!! ..........you?
RHO has originally passed the 1 ♠ overcall because he HOPED partner would reopen with a double which he can now pass. This is converting his partner’s take out double into a penalty double.
From working out the logic of this sequence it is obvious that the spades are stacked.
You hold:-
♠ void