回复：let me try normal word order.

heaving breasts （高耸的胸，高耸的乳房）

a stir terrified,（惊吓的吵闹声－意译）

a huge flag ＂shen the duke＂-大旗上写着＂shen the duke＂（公爵shen，shen应该是姓，my guess)

＂monkey the spook＂（幽灵猴，haha， i don't know)

now waves broke on rocks like drums (海浪拍打着岩石象打鼓一样)