Level 1. MOLE, LEMON, LONE
Level 2. RUST, TRUST, STRUT, RUT
Level 3. SEA, BUS, BASE, ABUSE, BEAU
Level 4. KID, RID, DIN, RIND, KIND, DRINK, INK
Level 5. DAD, DEAD, ADDED, ADD
Level 6. BAY, BASS, BASSY, ABYSS, SAY
Level 7. CUP, COP, COUP, COPE, COUPE, CUE
Level 8. SEAL, HEAL, SALE, LEASH, LASH
