At IMP’s, white on red, you are in 4th seat. You hold the following hand:
Spade Graphic A K J 9 8 6, Heart Graphic void, Diamond Graphic K Q 9, Club Graphic 8 6 5 4.

Partner opens 1Heart Graphic and RHO passes. You respond 1Spade Graphic and partner rebids 2Heart Graphic with the opponents silent.

What now?