Can't get to the green gem in Solomon's Mines (level 13)
I can see the green gem. I can swim to the room that should lead to the green gem. But I cannot jump up to the entrance to the room with the green gem. In the tall room with the coffins lining the walls on either side is as far as I can get. The walkthroughs say to jump up to the ledge on the right then jump across and over to the room with the green gem. This is not possible (as far as I can see) for indy to do. There is a 5 block piller, a 1 block pillar, a 2 block pillar, a space and then another 5 block pillar. There is no way to jump to the top of a 5 block pillar from the 2 block pillar. AHHHHHHH. I am missing something here but just can't figure it out. Please help and be specific.