Optained from lvl 6 Spooky Wooden Stakes.
Level 5+ can occasionally be tapped for Tombstones, Evil Chests, Egyptian Relics and Red Mystery Eggs.
Level 5 gives one lvl 1 Tombstone.
Level 6-7 give two lvl 1 Tombstones.
Level 8 give three lvl 1 Tombstones. (need 2nd confirmation)
Level 9 give four lvl 1 Tombstones.(need 2nd confirmation)
