Evidence of the flood is all over the place. Go look at the Grand Canyon. The layer boundaries are way too even to allow for thousands of years between them, much less millions, without erosion. The answer from secular science?
"The story begins about 2 billion years ago when igneous and metamorphic rocks were formed. Then, layer upon layer of sedimentary rocks were laid on top of these basement rocks." (From
Geology - Grand Canyon National Park (U.S. National Park Service))
"Sedimentary" means they were laid down by water. The straight lines indicate they saw no water or wind action for millions of years in their timeline, which is miraculous, if it happened.
The layers cross much of the N American continent. Such vast deposition requires that a lot of water covered a lot of the land at one time. You can say it took a long time, but the layer boundaries say different.
You're comparing a set of documents written over a 1500 year period by various authors about real life to Harry Potter? You're in the wrong forum.