Level 1. SLIT, TILL, LIST, SILL, STILL, SILT
Level 2. LEA, ELF, LEAF, BALE, ABLE, FABLE, BEL
Level 3. RIB, ION, NOB, NIB, RIBBON, ROB
Level 4. GYM, HIT, HIM, MIGHT, MIGHTY, MYTH
Level 5. MILD, MILE, LIME, DIME, MIDDLE, IDLE
Level 6. SORT, TOLL, LOST, ROLL, STROLL, SLOT
Level 7. END, VIE, VINE, DINE, DIVE, DIVINE, VEIN
Level 8. BOLT, LOBE, BELT, BLOT, BOTTLE, BOLE
