The Time Bubble Box Set Books 1-5 A thrilling series of time travel adventures

1) The Time Bubble
The story begins as Charlie and Josh discover a time portal in a railway underpass which transports those who enter forward in time.
2) Global Cooling
Ten years after the events of The Time Bubble, the world is gripped by a catastrophic climate event. Can time travel provide an escape?
3) Man out of Time
A victim of The Time Bubble finds himself thrust twenty-two years into a future where he's been declared legally dead.
4) Splinters in Time
Josh has perfected the art of time travel - until an accident sends him backwards in time on a nightmarish journey through a series of alternate universes.
5) Class of '92
A man from the 21st Century finds himself stranded in the pre-internet culture of 1992. Meanwhile, historical figures from the past are starting to turn up in Oxford.