They're written as adventurestories. They're not intended to be deep.
这些内容被写成了历险故事，不想太严肃。
《柯林斯英汉双解大词典》
2
However, his part in one of the greatest adventurestories of the 20th century is hardly known outside his own country, even by fellow explorers.
然而，20世纪最伟大的冒险故事之一中他的角色在国外几乎无人知晓，甚至连其他探险家也不知道。
3
This information wasn't particularly reliable because they were sometimes based on fictitious stories of a great adventure or scraped together from parts of different poems.