The Lord of the Sands of Time is one of the first books out from Haika Soru (say it out loud; it sounds like "High Castle", which is intentional), a new imprint featuring Japanese science fiction, edited by nihilistic_kid. It's fairly short, coming in at just under 200 pages and at times suffers due to its lack of length. The main gimmick, time travel and alternate worlds, is only loosely explained, but nonetheless manages to contradict itself in several jarring ways.
The heart of the book, though, is the characters and the relationships between them. Again, these could do with better development; many characters are merely hinted at. Nonetheless, there is a definite pattern of the same sort of character recurring in the different time periods, which enables the book to end on a positive note despite the eons of deep time separating the immortal Messenger from the people he cares about.
Overall, I think it's a promising first release from Haika Soru, and I look forward to next month's release of Usurper of the Sun.