潛艇

潜 = 替 + 氵 : The Queen of Hearts (qi) emptied her water bottle (氵) and is aiming to replenish (替) it in the anthill's kitchen (an2). Secretly (潜) she fills her water bottle by submerging (潜) it in a big water-filled flower pot.

艇 = 廷 + 舟 : engine has been flooded, and inside ((e)ng3) there's water everywhere. Mother Teresa (ti) arrived with her yellow submarine (舟) and changed into a small boat (艇) to explore the remains. She's specifically looking for the former palace courtyard (廷).